Grade 11
Objective 1
1
The safest way to dilute concentrated sulfuric acid is to add —
A
B
C
D
a series of small volumes of water to the acid while stirring
the acid to water slowly while stirring constantly
the acid to a small volume of water and then add more water
dilute sulfuric acid to a small volume of the concentrated acid
2
A science class is conducting an experiment that produces noxious
fumes. Because of inadequate ventilation, some students begin to
feel nauseated and dizzy. The first response should be to —
A
B
C
D
neutralize the acid that is reacting to produce the noxious fumes
carry the reactants outside, away from other students
leave the room and go to an area with fresh air
spray the reaction with a fire extinguisher
3
All of these procedures must be followed when using the setup
shown above except —
A
B
C
D
putting on safety goggles
handling the beaker with tongs
securing loose clothing
wearing rubber gloves
4
Reactions that produce toxic gases should be performed in a —
A
B
C
D
laboratory fume hood
beaker with a watch glass on top
well-ventilated area of the lab
warm, airtight drying oven
5
Classification symbols for certain fire extinguishers are shown
below. Which class of fire extinguisher should be used when a hot
plate overheats and catches on fire?
F
H
G
J
6
The label shown above contains information about some harmful
effects of acetone. A group of students plans to use acetone to rinse
out a glass container. A second group of students is working at the
same lab table. Which of the following lab procedures should the
second group of students avoid?
A
B
C
D
Heating water with an open flame
Pouring hydrochloric acid into a beaker
Filtering precipitates from a liquid solution
Collecting oxygen from plants in a test tube
7
The anatomy of grasshoppers is being studied in a dissection lab.
Working in groups of three, students make observations using a
hand lens, forceps, and a scalpel. Two of the students in a group
have finished their observations. These two students may do all of
the following except —
A
B
C
D
remove their goggles
review their notes
wash their hands
assist their lab partner
8
This picture indicates that the chemical represented is —
F
G
H
J
pressurized
corrosive
flammable
toxic
9
When performing this activity, students must remember to —
A
B
C
D
label the equipment used
keep hands away from face and mouth
sterilize the dissecting needle before use
disinfect the fur and feathers removed from the pellet
10
Science can be divided into three broad groups: life science,
physical science, and Earth science. Which of these topics would
most likely involve a knowledge of concepts from all three
branches of science?
A
B
C
D
Patterns of earthquakes
Aging of stars
Weathering of rocks
Structure of water molecules
11
Which of these tables best represents an experimental design used
to test whether cortisone relieves inflammation?
A
B
Group
n=1000
Amount of
Cortisone
(mg)
Group
n=10
Amount of
Cortisone
(mg)
1
100
1
0
2
200
2
200
3
300
3
210
Group
n=10
Amount of
Cortisone
(mg)
1
50
2
3
C
Group
n=1000
Amount of
Cortisone
(mg)
1
0
100
2
100
150
3
200
D
12
This experiment probably was set up to determine —
A
B
C
D
how much mechanical energy the battery produces
the pH of water during electrolysis
the pressure created by an electric current
how much energy is converted to heat
Time Required for Water
Evaporation
13
Container
A
B
Volume of
Water
(mL)
25
25
Temperature
(°C)
-15
25
Time
Required
(h)
72
24
The table shows times required for water to evaporate from identical containers.
Which of these is the best question to ask before developing a reasonable
hypothesis to explain the data?
F Why does a lower temperature slow the rate of evaporation?
G What is the boiling point of the water after both samples are heated?
H Why does water exist as a solid at −15°C and as a liquid at 25°C?
J How does the rate of evaporation change when a different container is used?
A scientist has hypothesized that the
existence of life on Mars is likely because
Mars’s atmosphere is 95% carbon dioxide.
14
Which question is valid in testing this hypothesis?
F Do most other scientists agree with the hypothesis?
G Could abiotic processes account for the carbon dioxide?
H What is the percent of argon compared to carbon dioxide in
the Martian atmosphere?
J Have the scientist’s other predictions about Mars been
validated?
15
Two science students discovered that the mass of a sample of
acetone in an open beaker decreased within a few minutes. One
student hypothesized that the acetone reacted with oxygen to form
a gaseous compound that escaped. The other student believed
that the acetone evaporated into the air. What should the students
do to test these hypotheses?
F
Combine the hypotheses so they give valid predictions of the
acetone’s behavior
G Conduct a study of original papers describing the experiments
leading to acetone’s discovery
H Perform an experiment that attempts to identify the gas above
the open beaker
J Ask a classmate’s opinion about the chemical and physical
properties of acetone
Students placed equal amounts of bread mold on 12 identical
agar plates containing the same amounts and types of nutrients.
Four plates were kept at 0°C, four were kept at 45°C, and four
were kept at 22°C (room temperature). The plates were examined
after five days.
16
Which of the following was probably the hypothesis for this
experiment?
F The growth of bread mold increases as temperature increases.
G The type of nutrient causes bread mold to grow faster at higher
temperatures.
H The size of the plates determines the temperature of bread
mold.
J The temperature of bread mold is determined by the mold’s
growth.
17
Which procedure is best to use when determining the density of a
rock?
F
G
H
J
Place the rock in a water-filled beaker and find the height at
which the rock floats above the water.
Use a ruler to measure the rock’s dimensions and then find its
mass using an analytical balance.
Measure the mass of the rock on a balance and then find the
volume of water it displaces in a graduated cylinder.
Place the rock in three liquids with different known densities and
observe which liquid the rock floats in.
Productivity
(g/m2/yr)
Bird Diversity
(average number of species/km2)
Marsh
2000
14
Grassland
500
12
Shrub land
600
8
Desert
70
3
Coniferous forest
800
17
Upland deciduous forest
1000
21
Floodplain deciduous forest
2000
24
Habitat
18
Which question could be formed based on these data?
F
G
H
J
What types of plants have increased productivity in different habitats?
Is there a relationship between productivity and bird diversity in a
habitat?
How does the number of birds in a population affect habitats?
Do habitats display changes in productivity and bird diversity during
different seasons?
19
The diagram shows different setups of an experiment to determine how sharks
find their prey. Which experimental setup is the control?
F
H
G
J
Initial Velocity
Of Ball
(m/s)
Calculated
Distance
(m)
Actual
Distance
(m)
2.0
0.52
0.51
4.0
2.07
2.01
8.0
8.30
7.90
Mass of metal ball:
Vertical height off ground, h:
20
0.066 kg
0.89 m
A catapult was designed to project a small metal ball at a target. The
resulting data are shown in the table. Which of these might explain
the difference between the calculated and actual distances?
A
The ball landed short of the calculated distance because of an
increase in momentum.
B Air resistance caused the ball to land short of the calculated
distance.
C Initial mass of the ball changed with each trial.
D The metal ball was too small for accurate measurements to be
made.
21
Which is the best question to ask before developing a reasonable hypothesis for the
phenomenon shown above?
F Why does water crystallize into a solid below 0°C instead of remaining a liquid?
G How will the freezing time from 20°C to –15°C change if each container is
covered?
H Why does boiling the water cause it to freeze more quickly when cooled from
20°C to –15°C?
J What is the precise boiling point of the water in Sample A after it has been
heated?
22
The diagram shows an experimental setup. Which of these
questions was this experiment designed to answer?
A
B
C
D
Does water boil when exposed to air?
Will fire turn a gas into a liquid?
Does air expand when heated?
Will heat turn a gas into a solid?
23
A ruler placed between one student’s fingers and thumb is released without warning.
A second student catches the ruler. The distance the ruler falls is recorded. This
experiment is most likely designed to determine the —
F effects of stress on the first student’s heart rate
G acceleration of the ruler during its fall
H second student’s reaction time to a stimulus
J force applied on a falling mass
24
Which set of equipment would be best to use to test the effect of
temperature on solution acidity?
F A balance and a thermometer
G A pH meter and a barometer
H A balance and litmus paper
J A thermometer and a pH meter
25 Which of these could be used to determine whether a substance is a
base?
A
B
C
D
Thermometer
Litmus paper
Balance
Bunsen burner
26 A medical researcher hypothesizes that a newly developed
medication can reduce high blood pressure. Which of these would
most likely be the dependent variable in a study involving this
medication?
A
B
C
D
The number of participants in the study
The ages of people treated for high blood pressure with other
medications
The blood pressure of the participants in the study
The number of people treated for high blood pressure with
other medications
27 The following hypothesis refers to iron in the topsoil found on an
island formed from limestone.
Hypothesis: Much of the iron found in the topsoil of the
island was carried from Africa by huge dust clouds.
Which study would most likely be used to investigate this
hypothesis?
A
B
C
D
Tracking dust clouds with satellite photos
Determining the effects of iron on limestone
Calculating erosion rates in African limestone mines
Analyzing the content of comet dust clouds
28 The picture above shows a compound microscope. What part of the
microscope should be used to adjust the amount of light illuminating
a prepared slide?
A
B
C
D
Eyepiece
Rotating nosepiece
Diaphragm
Coarse-focus knob
Experimental Results
Material
Conducts Electricity
Yes
Copper
X
Glass
X
Chalk
X
Silver
29
No
X
Wood
X
Sulfur
X
Tin
X
Zinc
X
According to these data, which question was most likely answered
by this activity?
A
B
C
D
How warm do materials get when placed in an electric circuit?
Will an electric current change a metal into a nonmetal?
Which material requires the greatest voltage in an electric
circuit?
Can an electric current be used to distinguish metals from other
materials?
30
Only 10% of the electrical energy operating a lightbulb is changed
into visible light. Which instrument helps identify the energy change
occurring to most of the remaining 90%?
F
G
H
J
Triple-beam balance
Thermometer
Magnifying glass
Prism
Materials:
125 mL cooking oil
100 mL H2O
10 g NaOH
Safety goggles
Apron
500 mL beaker
Stirring rod
Procedure:
• Measure and add 100 mL of H2O to 125 mL of cooking oil and mix thoroughly.
• Carefully and slowly add 10 g of NaOH while stirring constantly.
• Stir until a thick paste forms.
• Pour the paste into a mold and let it sit for two days.
• Remove the solid bar from the mold.
Caution:
Keep this soap away from the face and eyes because traces of NaOH may still be
present on the soap bar. Use this soap for washing floors and tools only.
31
Which two pieces of equipment should be added to the materials list for this activity?
F
G
H
J
Graduated cylinder and metric ruler
Metric ruler and stopwatch
Magnifying glass and balance
Graduated cylinder and balance
32
A valid study would include a control group containing —
A
B
C
D
bean seed, tomato seed, sunflower seed, and water
water and 2% root hormone
water only
bean seed, tomato seed, sunflower seed, water, and 1% root hormone
33
A student is working with four beakers that each contain a clear
liquid. Which set of procedures would be best to use to determine
whether one of the beakers contains only distilled water?
A
Observe odor
Determine temperature
Observe color
Determine boiling point
C
B
Observe odor
Determine pH
Determine density
Determine boiling point
D
Observe volume
Determine mass
Observe color
Determine pH
Determine mass
Observe volume
Determine temperature
Observe odor
Elodea in Different Salt Concentrations
Initial Setup
34
Similar sprigs of elodea were placed in four test tubes. Each
test tube contained water with a different concentration of salt
ranging from 0 to 3 percent. The length of each sprig was
measured after 10 days. Which of these questions can best be
answered with this experimental setup?
F
Can the amount of salt in the water help elodea avoid disease?
G What happens to salt as elodea uses water?
H
Will elodea increase the amount of salt in the water?
J
Does the amount of salt in the water affect elodea growth?
35 The picture shows an experiment designed to investigate biochemical activity in a water
plant in a dark room. Over time, bubbles can be easily observed and counted as they
escape from the funnel. The number of bubbles is an indicator of the rate of
photosynthesis. Which of these data tables best reflects the expected results of this
experiment?
Beaker
Number of
Bubbles/Minute
Beaker
Number of
Bubbles/Minute
Beaker
Number of
Bubbles/Minute
Beaker
Number of
Bubbles/Minute
1
0
1
10
1
15
1
20
2
15
2
0
2
15
2
10
3
20
3
20
3
15
3
0
A
B
C
D
A De-Icing Experiment
Some species of plants that commonly grow near
roadways are used in an experiment. The plant
species are divided into control groups and
experimental groups. All groups are grown under
identical conditions except
that the experimental groups are given daily
applications of a de-icing solution that is used on
roadways in winter. At the end of one month, the
growth of the control and experimental groups is
compared.
36
Which of the following is the most likely hypothesis for the experiment
described above?
A
B
C
D
Vegetation that grows near roadways requires more water than
vegetation in other areas.
De-icing solution causes roadways to have more space for vegetation.
Vegetation near roadways changes the effectiveness of de-icing
solution.
De-icing solution affects some types of vegetation that grow near
roadways.
37
Which of these tools is most useful in identifying the wavelengths of
visible light?
F
G
H
J
Convex lens
Spectroscope
Microscope
Concave mirror
38 In an activity, a ball is dropped from a height of 100 cm onto five
different materials. The rebound height of each drop is shown in the
graph. Which of the following describes the hypothesis most likely
being tested?
A
B
C
D
The mass of the ball affects the rebound height.
The material the ball is made of affects the rebound height.
The height the ball is dropped from affects the rebound height.
The surface the ball is dropped onto affects the rebound height.
39
The diagram shows a classroom setup for an experiment. This
experiment was probably designed to determine wood lice —
F
G
H
J
social behaviors
activity patterns
speed
habitat preferences
Acceleration of Toy Cars
40
Group Q
Group R
Group S
Group T
Trial 1 Time
(m/s2)
9.8
10.2
9.8
10.5
Trial 2 Time
(m/s2)
9.4
11.4
11.5
11.4
Trial 3 Time
(m/s2)
8.7
11.5
9.8
11.6
Trial 4 Time
(m/s2)
8.2
11.9
5.6
11.8
These data were gathered by four groups of students. Each group
performed four trials to determine the acceleration rate of a toy car.
Which group had the most consistent data?
F
G
H
J
Group Q
Group R
Group S
Group T
41
The picture shows the position of a ball every 0.25 second on a
photogram. Using a ruler, determine the velocity of the ball.
F
G
H
J
3.5 cm/s
10.5 cm/s
14.0 cm/s
28.0 cm/s
42
Four lab groups measured the volume of acid required to neutralize
a standard solution of sodium hydroxide base. Which of the groups
measured the volume with the highest precision?
A
C
B
D
Mass Measurements of a Platinum Cylinder
Balance
First Measure
(g)
Second Measure
(g)
Third Measure
(g)
Fourth Measure
(g)
Q
24.94
25.26
25.29
24.51
R
25.50
24.50
25.00
24.49
S
24.99
24.99
25.20
25.92
T
24.99
25.03
24.98
25.02
43
The table shows four mass readings of one object as measured by
four different balances. Which balance produced the mostconsistent measurements?
A
B
C
D
Q
R
S
T
44
The illustration shows volume levels of a liquid in a graduated
cylinder before and after a sample was removed. According to this
information, what was the volume of the sample to the nearest
milliliter? Record and bubble in your answer on the answer
document.
45
Which of these will give the most precise measure of a 10-milliliter
volume?
F
H
G
J
46
What is the volume reading for the solution in the pipette?
A
B
C
D
19.4 mL
19.6 mL
20.4 mL
20.6 mL
Louis Pasteur’s Experiment
Like many other scientific breakthroughs, the discovery of immunization happened by accident.
In 1880 Louis Pasteur was trying to protect chickens from cholera. To study the disease, Pasteur
and his assistants gave injections of cholera bacteria to several groups of chickens. The chickens
usually died from cholera after being injected with the bacteria. However, one group of chickens
survived. Pasteur noticed that these chickens had been injected with a six-week-old batch of
cholera bacteria.
Pasteur’s assistants prepared new colonies of cholera bacteria and injected these chickens a
second time. They also injected a group of chickens that had not been previously injected. Pasteur
was surprised that the chickens that had been injected previously with the old bacteria remained
healthy, while all the chickens in the second group became sick and died.
This is how Pasteur came to discover that exposure to weakened pathogens can provide immunity
from disease. The idea was later used to protect animals from other serious diseases. Today
immunizations help protect people from many illnesses.
47
Which of these probably served as the most useful data after Pasteur injected a group
of chickens with bacteria from the older culture?
A
B
C
D
The health and behavior of the injected chickens
The total number of cholera cases observed
The changes in the shape and color of the bacterial colonies
The recovery rate of chickens previously infected with cholera
48
Three liquids were poured into a beaker and formed three layers. Which
conclusion is best supported by the information above?
A
B
C
D
The mass of Liquid 2 is greater than the mass of Liquid 3.
The volume of Liquid 1 is less than the volume of Liquid 3.
The density of Liquid 3 is greater than the density of Liquid 2.
The buoyancy of Liquid 2 is greater than the buoyancy of
Liquid 1.
49
The pictures above show two organisms. Measure their body
lengths to the nearest tenth of a centimeter. What is the difference
between the body lengths of the grasshopper and cricket?
Record and bubble in your answer to the nearest tenth on the
answer document.
50
Which piece of equipment should be used to precisely measure
40.0 mL of a dilute sodium hydroxide solution?
A
C
B
D
Masses of Reactants and Products
51
Trial
Reactant 1
Mass
(g)
Reactant 2
Mass
(g)
Product
Mass
(g)
1
32
24
8
2
32
24
55
3
32
24
66
4
32
24
28
The chart shows the results of a conservation-of-mass experiment.
The most accurate trial for this experiment was —
F
G
H
J
Trial 1
Trial 2
Trial 3
Trial 4
52
Two students measured the length of the same stick, each using a
different 30 cm ruler. One student reported a length of 22 cm, and
the other reported a length of 8 cm. The most likely explanation for
the difference in the reported values is that one —
A
B
C
D
student improperly read the ruler
ruler was metal and the other ruler was plastic
student viewed the ruler from a different angle
ruler was constructed with nonstandard cm marks
53
Which of these is the most appropriate unit of measure for reporting
the density of a solid?
F
G
H
J
g/cm3
g/cm
g/L2
g/mm2
54
Which piece of equipment would be used to precisely measure the
volume of an acid?
A
C
B
D
Growth of a Stentor Population
55
The graph shows the increase in
a Stentor population. If this trend
continues, what will be the
approximate size of the Stentor
population after 4 weeks?
A
B
C
D
325 per 100 mL
348 per 100 mL
401 per 100 mL
454 per 100 mL
56
Which graph best shows the comparison of the elements to the total composition of
the copper ore?
Composition of a
Copper Ore
Element
Percent
Sulfur
28.68
Copper
28.42
Iron
24.98
Oxygen
9.54
Other
8.38
Total
100
A
B
C
D
57
At which temperature do KBr and KNO3 have the same solubility?
A
B
C
D
27°C
48°C
65°C
80°C
Spring Stretch
58
Force
(N)
ΔL
(cm)
0.98
3.5
1.96
7.0
2.94
10.5
According to the data in the table, about how far can a spring be
expected to stretch when a force of 3.92 N is applied?
A
B
C
D
10.5 cm
13.6 cm
14.0 cm
17.3 cm
59
This diagram shows the biochemical pathway that produces arginine
in Neurospora, a mold. Neurospora is easily grown on a
simple jelly-like
medium. Different substances can be added to the
medium. A mutant Neurospora lacking Enzyme Y would have to
have which of these added to its medium in order to survive?
A
B
C
D
Enzyme X
Ornithine
Enzyme Z
Citrulline
60
According to this information, what is the best prediction for the
boiling point of the seven-carbon alcohol?
A
B
C
D
169°C
178°C
186°C
192°C
61
According to the graph, what is the approximate half-life of carbon-14?
A
B
C
D
5.7 years
5,700 years
23,000 years
1,000,000 years
Phylum
62
Characteristics
Porifera
Asymmetrical, numerous pores, lacks tissues and organs
Annelida
Long segmented body, bilaterally symmetrical
Mollusca
Soft body consisting of foot, visceral mass, and mantle
Arthropoda
Segmented body, jointed legs, exoskeleton
This animal most likely belongs to phylum —
A
B
C
D
Porifera
Annelida
Mollusca
Arthropoda
63
Pressure on
Balloon (N/cm2)
Volume of
Balloon (mL)
0.35
980
0.70
400
1.04
320
1.42
220
1.75
180
While studying the relationship between the pressure and the volume of a gas,
members of a science class conducted an experiment in which they changed the
pressure on a balloon and then measured the balloon’s volume. They collected the
data above. Which graph correctly represents these data?
A
B
C
D
64
The graph shows the amount of carbon-14 in tissue over time.
According to the graph, if a bone contains 1/8 the amount of
carbon-14 that it did originally, its approximate age is —
F 5,700 years
G 11,400 years
H 17,100 years
J 22,800 years
Procedure
Used
Results of
Procedure
65
Group 1
Group 2
Group 3
Group 4
Living S-strain
bacterial cells
injected into
healthy mouse
Living R-strain
bacterial cells
injected into
healthy mouse
Killed S-strain
bacterial cells
injected into
healthy mouse
Killed S-strain and
living R-strain
bacterial cells
mixed and injected
into healthy mouse
Mouse died;
living S-strain
cells found in
mouse
Mouse remained
healthy; no
living R-strain
cells found in
mouse
Mouse remained
healthy; no
living S-strain
cells found in
mouse
Mouse died;
living S-strain
cells found in
mouse
This chart shows the results of an experiment performed in the 1920s using a
bacterial species that causes pneumonia in humans. The experiment involved
several procedures using two different bacterial strains, R and S. What is a possible
explanation for the results in Group 2?
A
B
C
D
Living S-strain bacteria can transform into a pathogenic form of R-strain
bacteria.
Living R-strain bacteria are controlled by a mouse’s immune system.
Dead S-strain bacteria can cause disease.
Dead R-strain bacteria can confer resistance to S-strain bacteria.
Group 1
Group 2
Group 3
Group 4
Supplement to
Minimal Medium
No supplement
added
Ornithine added
Citrulline added
Arginine added
Growth of Mutant
Neurospora
No growth
No growth
Growth present
Growth present
66
The diagram above shows the biochemical pathway that produces arginine, an
amino acid required by an organism called Neurospora. The table shows the
response of a mutant strain of Neurospora to supplements in its food supply. This
mutant strain must lack the enzyme that acts on —
F the precursor
G ornithine
H citrulline
J arginine
67
This graph shows the absorption spectrum for a certain pigment
molecule. To a human, this pigment would most likely appear —
A
B
C
D
blue
green
yellow
orange
Variation in Photosynthetic
Rate of Elodea
68
Light bulb Intensity
(W/m2)
Number of Bubbles per
Minute
25
4
50
7
75
12
100
31
125
38
The table shows the number of bubbles released by an elodea plant
per minute at different light intensities. The rate of bubble release is
representative of the photosynthetic rate. Which statement is
supported by these data?
A
B
C
D
The rate of photosynthesis is slowest when elodea produces
7 to 12 bubbles.
Lower light intensity causes a higher photosynthetic rate.
The greatest difference in photosynthetic rate is between the
75 W and 100 W light bulbs.
Light intensity has little effect on the rate of photosynthesis of
elodea.
69
The bacteria Bacillus thuringiensis produce protein crystals that are
toxic to the digestive system of insects. How can these bacteria be
used to control insects in crops?
F
G
H
J
Apply the bacteria to growing plants.
Expose the bacteria to low levels of light.
Remove plants from areas containing the bacteria.
Treat the bacteria with a solution of the protein crystals.
70
The graph shows how the momentum of a given mass changes
during a period of motion. According to the information, what is the
momentum in kg m/s at 2.75 seconds? Record and bubble in your
answer to the nearest whole number on the answer document.
71 The graph shows how the voltage needed to maintain a constant
current of 1.5 amps through a wire conductor varies with the length
of the wire. If the trend continues, what is the most likely voltage
needed to maintain a 1.5-amp current through 80 meters of the wire?
F
G
H
J
10 volts
18 volts
250 volts
400 volts
Electron Configuration
72
Energy level
1
2
3
Electrons
2
8
8
According to the periodic table and the information above, which
element has this electron configuration?
F
G
H
J
Sodium
Neon
Magnesium
Argon
73
Tube Number
Elapsed Time
(min)
Temperature
(°C)
Number of
Bubbles
1
0
25
1
1
2
25
2
1
4
25
4
2
0
30
3
2
2
30
6
2
4
30
12
3
0
35
9
3
2
35
18
3
4
35
?
The table shows the results of growing a yeast culture in a 5% glucose
solution. The number of bubbles produced was used to indicate the extent of
respiration by the yeast. If all other factors are held constant, how many
bubbles should be produced in Tube 3 after 4 minutes?
A
B
C
D
20
24
27
36
74
About how much KNO3 will dissolve in 100 grams of water at 80°C
to make a saturated solution?
A
48 grams
B
160 grams
C
170 grams
D
220 grams
75
In 1967, 34 million metric tons of fertilizers were used in the United
States. According to the graph, how many more metric tons of
fertilizers were used 30 years later?
A
B
C
D
16 million
25 million
64 million
84 million
Properties of Some Gases
Gas
Hydrogen
Oxygen
Carbon
Dioxide
Chlorine
Molecular Mass
(amu)
2
32
44
71
Density
(g/L; at 0C)
0.09
1.43
1.98
3.21
Boiling Point
(C)
-253
-183
-78*
-35
Solubility in Water
(L/L H2O; at 20C)
0.02
0.03
0.88
2.30
* Sublimes (changes directly from solid into gas)
76
Which of these statements is best supported by the information in the table?
F
G
H
J
Carbon dioxide and oxygen have similar chemical properties.
The density of the gases increases as their molecular mass increases.
Chlorine and hydrogen boil at the same temperature.
The solubility of the gases decreases as their density increases.
77
A researcher determined the percentage of electrical energy
transformed into different forms of energy by a toaster. The best way
to communicate these results is to display the data using a —
F
G
H
J
histogram
circle graph
line graph
box-whisker graph
• Cytochrome c is a protein found in all aerobic organisms.
• The differences in the amino acid sequence of cytochrome c
are used to determine how closely species are related.
Percent Differences in Cytochrome c
78
Horse
Dog
Kangaroo
Penguin
Horse
0
6
7
12
Dog
6
0
7
10
Kangaroo
7
7
0
10
Penguin
12
10
10
0
The table above shows percent differences in cytochrome c in four different animals.
According to the table, which two animals are most closely related to each other?
A
B
C
D
Horse and dog
Dog and kangaroo
Horse and penguin
Penguin and kangaroo
Organism X
Animalia
Vertebrata
Aves
Poecile carolinensis
Organism 1
Organism 2
Organism 3
Organism 4
Animalia
Vertebrata
Reptilia
Anolis carolinensis
Animalia
Vertebrata
Amphibia
Bufo americanus
Animalia
Vertebrata
Aves
Poecile gambeli
Animalia
Vertebrata
Aves
Grus americana
79
The chart shows the classification of four organisms found
in Texas. Which organism is most closely related to Organism X?
A
B
C
D
Anolis carolinensis
Bufo americanus
Poecile gambeli
Grus americana
80
If the current trend continues, about how many grams of KBr will
dissolve in 100 g of water at 140°C?
A
B
C
D
124 g
131 g
140 g
149 g
81
Which statement is best supported by these data?
A
B
C
D
The solution’s freezing point remained constant with each increase in the
amount of solute.
The freezing point of the solution decreased as the amount of dissolved solute
increased.
The rate of freezing increased when more solute was dissolved in the solvent.
The solution remained a liquid because more solute was added to the solvent.
Texas Soybean Production
Study Region
1
2
3
Soil Type
Loam/clay
Loam/clay
Loam/clay
Year
1998
1999
2000
1998
1999
2000
1998
1999
2000
Average Rainfall
(centimeters)
123
134
122
120
132
117
132
136
115
Average 03 Level
(parts/million)
0.04
0.08
0.09
0.08
0.08
0.07
0.10
0.08
0.06
Average Crop Yield
(bushels/acre)
34
28
26
28
27
29
25
28
31
82
The table shows environmental factors and soybean production for three regions.
Which of the following probably accounts for the decrease in soybean yield in
Region 1?
F High levels of ozone damaged the soybean plants, decreasing the average yield.
G Low rainfall amounts failed to meet the plants’ moisture needs and inhibited
growth.
H Poor mineral levels found in the soil in that region limited the soybean harvest.
J Higher-than-normal rainfall increased pest activity, decreasing the average yield.
Ozone Level for a Metropolitan Area
Date
Location
High
Temperature
(°C)
1/15/99
Downtown
13
NE 5 mph
0.01
NW Station
11
NE 10 mph
Trace
Downtown
22
Calm
0.03
NW Station
21
Calm
0.03
Downtown
30
SE 10 mph
0.05
NW Station
31
SE 5 mph
0.06
Downtown
38
S 5 mph
0.12*
NW Station
38
S 5 mph
0.14*
3/15/99
5/15/99
7/15/99
Prevailing
Wind
Ozone Level
(ppm)
*Unsafe levels of ozone above 0.10 ppm
83
An environmental-science company measured the ozone pollutant levels at two
different locations in a metropolitan area. Which statement is best supported by these
data?
A
B
C
D
Lower fuel efficiency and northerly winds in the winter increase ozone pollution
the most.
Northwest winds in the spring transport ozone pollution into the metropolitan area.
High summer temperatures and southerly winds contribute to high levels of ozone.
Heavy use of automobiles changes ozone levels the most.
Sound Intensity
Source
84
According to the table, which
workers have the greatest chance
of experiencing significant hearing
loss over time?
F Police traffic officers
G Shoe-factory workers
H Road-construction crews
J Library desk clerks
Intensity
(dB)
Rustling leaves
20
Library
40
Busy traffic
70
Factory
80
Heavy Truck
90
Subway
100
Construction
10
Jet engine
150
Rocket engine
180
90 dB – Endangers hearing
120 dB – Pain threshold
85
The graph shows the results of a study testing chemical pesticides
on a pest species common to cotton plants. Different chemical
pesticides were used in five different areas. According to these
results, which of the following is the most effective chemical for
controlling this pest species?
A
B
C
D
R
S
T
V
86
A certain commercial product used for cleaning ovens must be
handled with rubber gloves. The product is slippery and turns
litmus paper blue. It probably contains —
F an acid
G a base
H a salt
J an isotope
87
The graph shows metabolic rates for two types of fish at different
environmental temperatures. Which of the following conclusions
can be drawn from these data?
F
G
H
J
Fish metabolism responds to temperature changes.
Metabolic rates decrease as environmental temperatures
increase.
Fish body temperature results from high metabolism.
Metabolic rates are independent of environmental temperature.
88
The graph shows the relative basal metabolic rates of a field mouse
and an anole (a type of lizard) at different temperatures. According
to this information, the field mouse —
A
B
C
D
uses the least energy when the environmental temperature
is 30°C
is able to control its body temperature
uses less energy at 20°C than the anole does
is unaffected by environmental temperatures
Location
Corpus Christi
Fort Davis
Lipscomb
Latitude
27°48’N
30°35′N
36°14′N
Longitude
97°24’W
103°54′W
100°16′W
0 (sea level)
1494
728
20
25
22
100.0
95.0
97.6
Elevation (m)
Sanitizing Time (min)
Boiling Point of Water (°C)
89
Boiling water can be used to sanitize dishes. The data above show
how sanitizing time varies in different locations. Which inference is
supported by these data?
F
G
H
J
The boiling point of water is constant at higher altitudes.
The boiling point of water is affected by elevation.
Water takes longer to boil at Fort Davis than at sea level.
Boiling water changes temperature at a faster rate at Corpus
Christi than at higher elevations.
Boyle’s law gives the relationship between
the pressure and volume of a gas if the
temperature and mass of the gas are held
constant:
• If the volume of the gas is increased, the
pressure of the gas decreases.
• If the volume of the gas is decreased, the
pressure of the gas increases.
90
What can be concluded from the relationships described above?
F
G
H
J
Gas molecules travel longer distances at greater speeds when the volume
of the gas is decreased.
A gas is more likely to lose kinetic energy when its volume is reduced.
Gas molecules collide less frequently when the volume of the gas is
increased.
A gas is more likely to increase in momentum when its volume is increased.
Trade winds blow from east to west across the Pacific
Ocean. The winds move surface waters westward across
the ocean. This causes deeper, colder water to rise to the
surface along the coast. This upwelling of deep ocean
waters brings with it nutrients that would otherwise lie near
the bottom of the ocean.
91 Which of the following conclusions is supported by the
information above?
F
G
H
J
Trade winds help maintain some food chains.
Trade winds produce useful minerals in some oceans.
Trade winds can reverse parts of the water cycle.
Trade winds may be able to reduce greenhouse gases.
Conclusion: Hearing aids are an effective way
to treat hearing loss.
92
A study was conducted to test the effectiveness of hearing aids.
People with different types of hearing loss were included in the
study. Which question would help in determining whether the
conclusion above is valid?
A
B
C
D
What was the average age of the people in the study?
What was the most common occupation of people in the study?
How many people were included in the study?
How many people in the study had vision problems?
• Mycobacterium tuberculosis causes tuberculosis in humans.
• When treated with antibiotics, most M. tuberculosis bacteria are
killed, but some have genes that allow them to survive.
• M. tuberculosis bacteria that survive the antibiotic treatment may
reproduce.
93
Which of the following conclusions is supported by the information
above?
F
G
H
J
Antibiotics have intensified the symptoms of M. tuberculosis
infections.
M. tuberculosis is becoming extinct because of antibiotics.
Antibiotics have caused M. tuberculosis to reproduce at a faster
rate.
M. tuberculosis has developed resistance to antibiotics.
94
The picture shows the results of a demonstration using the simple water
plant Elodea. When the setup was placed in strong light, a space gradually
appeared above the water in the graduated cylinder containing the plant.
The gas in the space above the water was mostly —
F
oxygen
G carbon dioxide
H
hydrogen
J
nitrogen
95 The graph compares absenteeism of elementary school students who wash their
hands properly with absenteeism of students who fail to wash their hands
properly. Which inference could best be supported by these data?
A
B
C
D
Proper hand-washing may increase attendance among elementary school
students.
Older students have developed better hand-washing habits than younger
students.
Some elementary school classes teach correct hand-washing methods to
students.
Improper hand-washing is a common practice among most elementary
school students.
96
The pictures show a 10-newton block of wood being used to
demonstrate how this instrument measures pressure. According to
these data, the pressure of the block is a measure of the block’s —
A
B
C
D
weight distributed over an area
density along each face
mass per unit of volume
change in inertia
97 After 15 minutes the food coloring in Beaker A is evenly spread throughout the beaker,
while Beaker B contains a thin layer of food coloring only at its bottom. These observations
support the theory that convection currents in a fluid form more quickly if the fluid has —
A
warmer layers at the bottom
B
a covering on its surface
C
reduced pressure on the bottom
D
contact with a cooler surface
98
A glass is held upside down so that its open end is closed by the water’s
surface. Soon air bubbles begin to escape from the glass. The best
explanation for this observation is that —
A
B
C
D
water condenses on the glass and escapes as a gas
air in the glass increases the water temperature and causes bubbling
pressurized water vapor rises rapidly and evaporates
air trapped in the glass is warmed and expands in volume
99
The diagram represents helium gas expanding to fill a larger
container. What is the ratio of the helium gas’s density at the final
volume to its density at the initial volume?
A
B
C
D
1:1
4:1
1:8
1:50
Organism
100
Observed Characteristics
Q
Eukaryotic, photosynthetic, nonvascular, gametophytes larger
than sporophytes
R
Eukaryotic, heterotrophic, nonvascular, reproduces with
Spores
S
Eukaryotic, photosynthetic, vascular, sporophytes larger than
Gametophytes
T
Eukaryotic, photosynthetic, vascular, reproduces with seeds
According to this information, three of these organisms should be
placed in the same kingdom. Which organism should be placed in a
different kingdom?
F
G
H
J
Q
R
S
T
101
In the past, people thought that life arose spontaneously out of
non-living material. This belief was based partly on the observation
that vegetable broth swarmed with microorganisms after sitting out
for a few hours. Louis Pasteur (1822–1895) believed spontaneous
generation was impossible. Which statement below would best
support Pasteur’s belief?
A
Broth that was kept clean of airborne dust particles shows no
signs of life after many days.
B A review of other scientists’ work shows that those scientists
made many observations.
C If distilled water is substituted for the broth, no microorganisms
are revealed after a few hours.
D Philosophical arguments offer no support for spontaneous
generation.
102 The smell of an ammonia solution used to clean a floor can quickly
be detected throughout a house. Scientists explain this
phenomenon by theorizing that gas molecules from the ammonia
are in continuous random high-speed motion, drifting rapidly and
permeating the air. Which statement best demonstrates the
strength of this theory?
A
B
C
D
Scientists have observed tiny smoke particles moved by
unseen particles in a rapid, irregular fashion.
Scientists have unanimously agreed on this theory since
Thomas Graham’s experiments in the 1820s.
The possibility of another theory being formed to explain the
phenomenon as well is very remote.
Reason, as opposed to experimentation, is superior to any
explanation found through chemical testing.
103
An advertisement claims that patients can be cured of the
common cold in 48 hours by vitamin C tablets with secret mineral
supplements. In a scientific experiment to test these claims, which
data can be considered irrelevant?
A
B
C
D
The amount of vitamin C in each tablet
The severity of the patients’ cold symptoms
The chemical formula for vitamin C
The amount of time before symptoms improve
Plot
Gases Added to
Surrounding Air
Time
(days)
1
CO2
26
2
O3
3
3
CO2 + O3 mixture
10
4
None (control)
18
104 The table shows the time it took trees of the same type and size
to drop all of their leaves after being grown in different atmospheres.
For the experiment to be valid, which of these must be a constant for
all the trees?
F
G
H
J
The height of all the trees during the entire experiment
The amount of water available to all trees during the
experiment
The mass of fallen leaves collected from each tree
The rate of photosynthesis in all trees during the experiment
105 The graph above compares the acidity of apples stored for 270 days
under different conditions to the acidity of apples that were just
harvested. Some apples were stored at room temperature (20°C),
and other apples were stored at 0.5°C. Some of the apples were
treated with MCP, an antispoilage chemical. According to these
data, it can be inferred that —
A
B
C
D
apples treated with MCP and kept at a low temperature retain
acidity best
low temperature prevents any loss of acidity in stored apples
apples stored at room temperature are unaffected by treatment
with MCP
high temperature promotes acid production in stored apples
Hypothesis: A glass plate covering a tray of
water will keep water molecules from
escaping into the atmosphere.
Observation: After one week the open tray
was dry, but water remained in the covered
tray.
106 Which of the following is a strength of this hypothesis?
F
G
H
J
It is more logical than past hypotheses.
It agrees with the opinion of most people.
It can be examined using scientific means.
It challenges the current theory of atoms.
Research shows that levels of a certain
protein are elevated in the blood of people
with a bacterial infection. People with a
viral
infection show only trace amounts of the
protein. The level of the protein can be
determined in about an hour after a blood
test.
107 Which of these is a benefit of knowing whether a person with a
respiratory infection has an elevated level of this protein in the
blood?
A
B
C
D
A set of aerobic exercises can be recommended.
A diet of essential nutrients can be recommended.
A decision can be made about whether to take an x-ray.
A decision can be made about whether to use antibiotics.
Independent Project
WHAT TIME OF DAY ARE YOU
MOST ALERT?
Assumption: The ability to sort
playing
cards is an indication of alertness.
Procedure:
1. Shuffle a deck of playing cards
four times
2. Time how long it takes to sort the
cards into the four suits
3. Repeat the activity at the same
times for five days
108
Time of Day
Average Sorting
Time
(s)
8:00 A.M.
130
12:00 NOON
105
4:00 P.M.
122
8:00 P.M.
127
Which of the following conclusions is supported by these data?
A
B
C
D
Alertness is directly related to level of distraction.
Shuffling methods can affect alertness.
Alertness levels vary during the day.
Long periods of rest improve alertness.
Ancient Greeks and Science
The ancient Greeks developed a set of assumptions, based on observations, to explain how the
universe works. These observations led the Greeks to believe that the universe was composed of
four elements: earth, water, fire, and air. The “theory of natural place” was based on their
observations of these four elements. The theory stated that anything not in its natural place would
move toward its natural place as soon as an opportunity arose. The theory of natural place was the
foundation for the modern understanding of the elements. The following chart describes some
observations and assumptions made by the ancient Greeks.
Object
Observation
Assumption
Water
Flows over land
Water has its natural place on the
ground.
Fire
Flames flicker upward; the greater the fire, the
higher the flames
Fire’s natural place is in the
heavens, above the atmosphere.
Air
Blows across the land; if trapped in water,
escapes at first opportunity
Air’s natural place is in the space
above the ground.
109 Which of these fails to support the idea that water’s natural place is on the
ground?
A
B
C
D
Hailstones
Rain
Waterfalls
Clouds
110
Which of these would have the greatest percent of fat content by
mass?
A
B
C
D
A food with a net mass of 29 grams and with 10 grams of fat
A food with a net mass of 35 grams and with 13 grams of fat
A food with a net mass of 45 grams and with 15 grams of fat
A food with a net mass of 56 grams and with 17 grams of fat
111
Many doctors recommend 800 μg of folate,
400 μg of vitamin B12, and 50 mg of vitamin B6
per day to improve cardiovascular health. Based
on this information and the nutrition label, the
cardiovascular health benefit of a 1-ounce serving
of this cereal is —
A
doubtful because it provides insufficient folate
and vitamin B6 and lacks vitamin B12
B superb because it contains only 22 g of
carbohydrates and 75 mg of sodium
C excellent because it provides all needed
vitamins and is low in fat and cholesterol
D poor because it raises blood cholesterol
levels with its high fat and cholesterol content
112
An herbal company advertises that its product will help people lose
weight if they take a tablespoon of the product with a glass of water
at bedtime each night. Weight loss is guaranteed if a person does
not eat for at least 3 hours before bedtime, gets moderate exercise,
and drinks 8 glasses of water each day. Why is the company’s claim
difficult to verify?
F The company has yet to disclose the identity of its special herb.
G Numerous uncontrolled variables are involved in evaluating
results.
H Fasting lessens the absorption rate of the herb.
J The advertisement lacks data from before and after the weight
loss.
113
Which conclusion can reasonably be made about Glycotac based on the
promotional brochure?
A
B
C
D
All people with diabetes can safely use the product.
Glycotac is guaranteed to lower blood sugar in people without health problems.
Using the product may lower blood-sugar levels.
Glycotac eliminates the need to exercise to control high blood sugar.
114
A magazine included advertisements for two different garlic supplements to promote
healthy hearts. The advertisement for Very Good Garlic Extract presents evidence
that is more valid because —
A
B
C
D
information was gathered in a controlled manner
it lacks a guarantee
it lacks personal testimonials to the product’s effectiveness
information was gathered in more than one country
115 Horses kept in stables sometimes chew on wood. This can lead to
damage to the mouth and digestive system. The graph shows the
results of a study of a medication that prevents horses from chewing
on wood. From the graph, what inference can be made about the
effectiveness of the product?
A
B
C
D
Most horses like the medication.
The medication is most effective between Days 4 and 5.
Most horses will show improvement within 7 days.
The effects of the medication are long lasting.
116 Which of the following makes the effectiveness of this product questionable?
F
G
H
J
The product description is for a simple pendulum.
Many factors can make the paper clip move.
Metal paper clips react with iron and steel objects.
The product must be used while walking in a straight line.
117
Which of these would provide the best
scientific support for the information on the
label?
A
B
C
D
Data that indicate the gender and average
age of consumers
A survey showing that many people prefer
pearl calcium
Records that show few requests for money
back
A controlled study showing the
effectiveness of pearl calcium
Ulcer Study Results
Treatment Group
(200)
Patients Reporting Relief
(%)
After 2 Weeks
After 4 Weeks
Received
medication
33
92
Received placebo
(sugar tablet)
13
58
118
The table shows the results of a study testing the effectiveness of an
ulcer medication. Why was one group given a sugar tablet?
A
B
C
D
To include a control group
To have an experimental group
To provide a variety of treatments
To give the body additional nutrients
119 Which of the following would explain why this film works with a
reduced amount of light?
A
B
C
D
The film reflects long wavelengths of light efficiently.
Fewer silver halide granules are present in the film.
The film refracts brighter light.
The photochemical reaction can occur in lower intensity light.
120 Which conclusion about AvexTec is supported by information in this advertisement?
F AvexTec is available over the counter at local pharmacies and grocery stores.
G People who take AvexTec every day will seldom experience pain from migraines.
H Research indicates that AvexTec prevents migraine headaches.
J AvexTec can be prescribed to reduce pain from migraines.
Grade 11
Objective 1
Answer Key
Grade 11 Objective 1 Answer Key
Question
Correct Answer
Objective
Measured
Student
Expectation
1
B
1
BIO 1A
2003 TAKS – 1
2
C
1
BIO 1A
2003 TAKS – 55
3
D
1
BIO 1A
Apr 2004 TAKS – 9
4
A
1
BIO 1A
Jul 2004 TAKS – 15
5
H
1
BIO 1A
Jul 2004 TAKS – 24
6
A
1
BIO 1A
Apr 2006 TAKS – 19
7
A
1
BIO 1A
Oct 2005 TAKS – 5
8
G
1
BIO 1A
Feb 2006 TAKS – 52
9
B
1
BIO 1A
Fall 2005 TAKS – 7
10
C
1
BIO 2A
2002 Info Booklet – 2
11
D
1
BIO 2A
2004 Info Booklet – 26
12
D
1
BIO 2A
2003 TAKS – 9
13
F
1
BIO 2A
2003 TAKS – 28
14
G
1
BIO 2A
2003 TAKS – 36
15
H
1
BIO 2A
2003 TAKS – 46
16
F
1
BIO 2A
Apr 2004 TAKS – 4
17
H
1
BIO 2A
Apr 2004 TAKS – 6
18
G
1
BIO 2A
Apr 2004 TAKS – 16
19
F
1
BIO 2A
Apr 2004 TAKS – 30
20
B
1
BIO 2A
Apr 2004 TAKS – 43
21
H
1
BIO 2A
Jul 2004 TAKS – 8
22
C
1
BIO 2A
Jul 2004 TAKS – 39
23
H
1
BIO 2A
Jul 2004 TAKS – 46
24
J
1
BIO 2A
Jul 2004 TAKS – 50
25
B
1
BIO 2A
Apr 2006 TAKS - 5
Source - item number
Grade 11 Objective 1 Answer Key
Question
Correct Answer
Objective
Measured
Student
Expectation
26
C
1
BIO 2A
Arp 2006 TAKS – 27
27
A
1
BIO 2A
Apr 2006 TAKS – 41
28
C
1
BIO 2A
Apr 2006 TAKS – 43
29
D
1
BIO 2A
Oct 2005 TAKS – 1
30
G
1
BIO 2A
Oct 2005 TAKS – 28
31
J
1
BIO 2A
Oct 2005 TAKS – 42
32
A
1
BIO 2A
Feb 2006 TAKS – 35
33
B
1
BIO 2A
Feb 2006 TAKS – 43
34
J
1
BIO 2A
Feb 2006 TAKS – 54
35
D
1
BIO 2A
Jul 2006 TAKS – 3
36
D
1
BIO 2A
Jul 2006 TAKS – 5
37
G
1
BIO 2A
Jul 2006 TAKS – 16
38
D
1
BIO 2A
Jul 2006 TAKS – 55
39
J
1
BIO 2A
Fall 2005 TAKS – 2
40
D
1
BIO 2B
2004 Info Booklet – 3
41
H
1
BIO 2B
2003 TAKS – 4
42
D
1
BIO 2B
2003 TAKS – 13
43
D
1
BIO 2B
Apr 2004 TAKS – 19
44
9
1
BIO 2B
Apr 2004 TAKS – 20
45
H
1
BIO 2B
Jul 2004 TAKS – 22
46
A
1
BIO 2B
Jul 2004 TAKS – 55
47
A
1
BIO 2B
Apr 2006 TAKS – 33
48
C
1
BIO 2B
Apr 2006 TAKS – 55
49
2.4
1
BIO 2B
Oct 2005 TAKS – 20
50
c
1
BIO 2B
Feb 2006 TAKS – 1
Source - item number
Grade 11 Objective 1 Answer Key
Question
Correct Answer
Objective
Measured
Student
Expectation
51
G
1
BIO 2B
Feb 2006 TAKS – 6
52
A
1
BIO 2B
Feb 2006 TAKS – 29
53
F
1
BIO 2B
Jul 2006 TAKS – 40
54
C
1
BIO 2B
Fall 2005 TAKS – 3
55
D
1
BIO 2C
2004 Info Booklet – 1
56
D
1
BIO 2C
2003 TAKS – 47
57
B
1
BIO 2C
2003 TAKS – 51
58
C
1
BIO 2C
Apr 2004 TAKS – 5
59
D
1
BIO 2C
Apr 2004 TAKS – 35
60
B
1
BIO 2C
Apr 2004 TAKS – 47
61
B
1
BIO 2C
Apr 2004 TAKS – 49
62
B
1
BIO 2C
Apr 2004 TAKS – 53
63
D
1
BIO 2C
Jul 2004 TAKS – 1
64
H
1
BIO 2C
Jul 2004 TAKS – 6
65
B
1
BIO 2C
Jul 2004 TAKS – 9
66
G
1
BIO 2C
Jul 2004 TAKS – 36
67
C
1
BIO 2C
Jul 2004 TAKS – 51
68
C
1
BIO 2C
Jul 2004 TAKS – 53
69
F
1
BIO 2C
Apr 2006 TAKS – 2
70
200
1
BIO 2C
Apr 2006 TAKS – 20
71
J
1
BIO 2C
Apr 2006 TAKS – 24
72
J
1
BIO 2C
Apr 2006 TAKS – 46
73
D
1
BIO 2C
Oct 2005 TAKS – 17
74
C
1
BIO 2C
Oct 2005 TAKS – 51
75
A
1
BIO 2C
Oct 2005 TAKS - 53
Source - item number
Grade 11 Objective 1 Answer Key
Question
Correct Answer
Objective
Measured
Student
Expectation
76
G
1
BIO 2C
Feb 2006 TAKS – 12
77
G
1
BIO 2C
Feb 2006 TAKS – 34
78
A
1
BIO 2C
Feb 2006 TAKS – 37
79
C
1
BIO 2C
Fall 2005 TAKS – 1
80
A
1
BIO 2D
2002 Info Booklet – 16
81
B
1
BIO 2D
2004 Info Booklet – 4
82
F
1
BIO 2D
2003 TAKS – 22
83
C
1
BIO 2D
2003 TAKS – 31
84
H
1
BIO 2D
2003 TAKS – 44
85
C
1
BIO 2D
Apr 2004 TAKS – 11
86
G
1
BIO 2D
Apr 2004 TAKS – 34
87
F
1
BIO 2D
Apr 2004 TAKS – 50
88
A
1
BIO 2D
Jul 2004 TAKS – 3
89
G
1
BIO 2D
Apr 2006 TAKS – 26
90
H
1
BIO 2D
Apr 2006 TAKS – 28
91
F
1
BIO 2D
Apr 2006 TAKS – 48
92
C
1
BIO 2D
Apr 2006 TAKS – 51
93
J
1
BIO 2D
Oct 2005 TAKS – 4
94
F
1
BIO 2D
Oct 2005 TAKS – 8
95
A
1
BIO 2D
Feb 2006 TAKS – 7
96
A
1
BIO 2D
Feb 2006 TAKS – 11
97
A
1
BIO 2D
Feb 2006 TAKS – 17
98
D
1
BIO 2D
Feb 2006 TAKS – 33
99
C
1
BIO 2D
Fall 2005 TAKS – 49
100
G
1
BIO 2D
Fall 2005 TAKS – 52
Source - item number
Grade 11 Objective 1 Answer Key
Question
Correct Answer
Objective
Measured
Student
Expectation
101
A
1
IPC 3A
2004 Info Booklet – 5
102
A
1
IPC 3A
2003 TAKS – 5
103
C
1
IPC 3A
2003 TAKS – 15
104
G
1
IPC 3A
Apr 2006 TAKS – 30
105
A
1
IPC 3A
Oct 2005 TAKS – 29
106
H
1
IPC 3A
Oct 2005 TAKS – 54
107
D
1
IPC 3A
Feb 2006 TAKS – 41
108
C
1
IPC 3A
Jul 2006 TAKS – 1
109
D
1
IPC 3A
Fall 2005 TAKS – 15
110
B
1
IPC 3B
2004 Info Booklet – 2
111
A
1
IPC 3B
2003 TAKS – 7
112
G
1
IPC 3B
2003 TAKS – 30
113
C
1
IPC 3B
Apr 2004 TAKS – 1
114
A
1
IPC 3B
Jul 2004 TAKS – 5
115
C
1
IPC 3B
Apr 2006 TAKS – 39
116
G
1
IPC 3B
Oct 2005 TAKS – 48
117
D
1
IPC 3B
Feb 2006 TAKS – 3
118
A
1
IPC 3B
Feb 2006 TAKS – 31
119
D
1
IPC 3B
Jul 2006 TAKS – 15
120
J
1
IPC 3B
Fall 2005 TAKS - 54
Source - item number