LOCKLIN: BIOL1406: Test 1
BIOLOGY 1406
GEN BIOLOGY I
Name _____________________________
June 10, 2004
Form A
Exam I
I. (20 points) Multiple choice. Select the correct answer for each question and place the answer on your exam in the
blank to the left of the number.
____1. Pure water has a pH of 7 because it contains
a. equal numbers of hydrogen and hydroxide ions
b. equal numbers of hydrogen and oxygen atoms
c. a variety of buffers
d. none of the above
e. a, b, and c are correct
____2. You drink a glass of lemonade, but your body's pH does not change. This is an example of how organisms:
a. maintain homeostasis.
d. are immune to acid.
b. maintain organization.
e. are what they eat.
c. adapt to their environment.
____3. Which of the following could science most likely say little or nothing about?
a. the relationship of all corals in the oceans
b. the amount of ammonia released by decomposers
c. the relative beauty of precious jewels
d. the co-evolution of insects and flowering plants
e. the loudness of music composed by Beethoven versus that played by Van Halen or a heavy metal rock band
____4. What is the defining characteristic of an acid?
a. It donates hydrogen ions.
b. It accepts hydrogen ions.
c. It will donate or accept hydrogen ions depending on the pH.
d. It has an excess of hydroxide ions
e. It has a pH greater than 7.
____5. The following reaction represents a(n) ___________________ reaction.
AB ----------> A + B
a. exchange
b. anabolic
c. catabolic
____6. If two atoms share a pair of electrons, they are held together by a(n)
a. polar bond
c. hydrogen bond
b. covalent bond
d. ionic bond
____7. The major organizing thread or principle in the science of biology is
a. a long line of very fine scientists
c. the scientific meeting
b. the use of biological humor
d. the laboratory
d. reduction
e. oxidation
e. neutral bond
e. evolution
____8. Which is NOT an example of evolution?
a. Development of antibiotic-resistant bacteria. d. A dog learns how to open the cabinet where the food is
b. Flightless birds on islands without predators. e. Most commercial pesticides are effective for 2-3 years.
c. This year's flu is different from last year's flu.
____9. During an anabolic reaction, two smaller molecules are fastened together by the removal of
a. one of the subunits
c. an amino acid
e. two hydroxyl groups
b. a molecule of water
d. a sugar
Biol 1406: Exam I
___10. Which of the following is a CORRECT statement about the scientific method?
a. it distinguishes between good and bad
b. it can only be done by someone with a Ph.D. or advanced training
c. it organizes evidence and helps us predict what will happen in our environment
d. it requires expensive laboratory equipment
e. its methods are substantially different from the way people normally process information
___11. Based upon your knowledge of atomic structure, an atom with 15 protons in its nucleus
a. would be very stable and unreactive
d. would be very positively charged
b. tend to form covalent bonds
e. none of the above
c. would probably form ionic bonds
___12. A scientific theory is
a. just a guess
b. often not supported by observations or scientific experiments
c. the same thing as a scientific law
d. proposed by a scientist based upon several observations
e. supported by numerous observations and experiments
___13. Darwin's book in which he described his views on evolution is
a. The Origin of Species
b. Principles of Population
c. To the Victor Go the Spoils.
d. Survival of the Fittest
e. Favoured Races
___14. Darwin proposed that "those individuals that possess superior physical, behavioral, or other attributes
are more likely to survive than those that are not so well endowed," and thus more likely to pass their traits
on to the next generation. This is a description of what Darwin called
a. biological diversity
c. natural selection
e. survival of modifications
b. geometric progression
d. superior beings
___15.
a.
b.
c.
Each amino acid differs from others in the
location of the carbon atoms
d. nature of the R group
number of carboxyl groups
e. all of the above
size of the amino group
___16. Darwin was much influenced by an essay about how population numbers increase faster than the food
supply increases, an essay written by
a. Darwin himself
c. Thomas Malthus
e. Peter Raven.
b. Charles Lyell
d. Karl Popper
___17. The bonds between two carbon atoms or carbon and hydrogen represent
a. shared electrons
c. energy sinkholes
b. slurpy factoids
d. stored energy
e. both a and d
___18. The mass number of an element can easily be approximated by adding together the number of
a. electron orbitals in each energy level
d. protons and electrons
b. isotopes of the atom
e. neutrons and electrons
c. protons and neutrons
___19. Which of the following lists the four elements that make up 97% of all living tissue?
a. hydrogen, carbon, nitrogen, oxygen
d. carbon, hydrogen, nitrogen, sulfur
b. oxygen, carbon, helium, nitrogen
e. nitrogen, carbon, helium, sulfur
c. oxygen, nitrogen, carbon, sulfur
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Biol 1406: Exam I
___20. Since Darwin presented his theory of evolution, his ideas have become
a. neglected
d. a theory accepted only by religious fundamentalists
b. the main unifying theme in biology
e. the basis for all scientific endeavors
c. the final word on the age of the earth.
II. (20 points) Fill in the blanks with the correct word or statement. The value of each question is in the parentheses
following the number.
1. (1) The linear arrangement of amino acids in the polypeptide chain is referred to as the __________________ structure
of the protein.
2. (1) The many varieties of pigeons, chickens, garden vegetables, horses, dogs, and chrysanthemums (caused by breeding
by humans) are all examples of __________________________________________________.
3. (1) James Hutton, a late 18th Century amateur geologist and biologist is known as the man who changed our thinking
about ____________________________________________________________________________
4. (1) Cholesterol, testosterone, and estrogen are all examples of _______________________________.
5. (2) List two of the attributes something must have to be considered truly alive:
__________________________________ and __________________________________________________.
6. (1) A compound that maintains a solution at a constant pH by accepting or releasing H + in response to small changes in
H+ concentrations is known as a __________________________.
7. (1) Linnaeus based his monumental works on the classification of organisms on the idea that all organisms were fixed
for all time and everything on earth could be arranged in a hierarchical order, known in the 18th century as the
_____________________________________.
8. (1) pH is the measure of the concentration of ________________________ present in a solution.
9. (2) All atoms have at least one ____________ in the nucleus but the number of ____________ in the nucleus can vary.
10. (1) The four nitrogen bases in a molecule of DNA are Adenine, Guanine, Cytosine, and _______________.
11. (1) Name one function of carbohydrates ______________________________________________________
12. (2) Name two of the lines of evidence Darwin used to support his Theory of Evolution:
_____________________________________________ and ________________________________________.
13. (1) Water is attracted to any substance which __________________________________________________
14. (3) List the three kinds of atoms which make up any carbohydrate. ______________, _________________, and
__________________.
15. (1) When two or more different atoms combine they form a molecule of a(n) ________________________________.
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Biol 1406: Exam I
III. (20 points) Matching. Place the letter of the correct answer from Column B into the blank to the left of the
term in Column A. NOTE: There are more answers in Column B than you will need.
A
____1. Alfred Russell Wallace
____2. atom
____3. Baron Cuvier
____4. compound
____5. phospholipid
____6. functional group
____7. Galápagos Islands
____8. homeostasis
____9. hydrophobic
___10. hypothesis
___11. ion
___12. Kingdom Monera
___13. Lamarck
___14. natural selection
___15. amino acids
B
a. the branch of chemistry which studies carbon compounds
b. French biologist; a theory of evolution with an incorrect explanation
c. a hypothesis of long standing with much supporting evidence.
d. nucleotide bases found only in DNA
e. ordinary natural processes have always taken place and can account for
geological changes
f. Essay on Population; populations will outstrip the food supply
g. basic building block of proteins
h. the basic unit of matter
i. Das Kapital, Tristan und Isolde, and Origin of Species published
j. the science, or study of life
k. a molecule of two or more atoms of different kinds
l. a group of similar organisms that are capable of interbreeding under
natural conditions
m. an educated guess attempting to explain observations
n. independently worked out the Theory of Evolution while in the Far
Eastern tropics
o. the simplest of all living things; essentially the bacteria
p. a carbohydrate composed of two monosaccharides
q. known as the natural "laboratory" of evolution
r. a certain combination of atoms which always reacts the same way and
confers certain properties upon the compounds containing them
s. French paleontologist; "created" pre-historic worlds of extinct creatures
t. culling of poorly adapted organisms by the environment; most welladapted leave the most offspring
u. non-polar; not dissolvable in water
v. the most abundant type of molecule which makes up cell membranes
w. an "atom" with one or more charges
x. maintenance of a stable internal environment by a cell or an organism
___16. biology
___17. species
___18. theory
___19. Thomas Malthus
___20. uniformitarianism
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Biol 1406: Exam I
IV. (10 points) Matching. Place the letter of the correct answer into the blank to the left of the term.
_____1. glucose
_____2. steroid
_____3. hydroxyl group
(B)
(A)
_____4. phospholipid
_____5. amino acid
(C)
(D)
(E)
(F)
-OH
(G)
-COOH
(H)
-NH2
_____6. Which of the drawings depicts the electron configuration of oxygen?
_____7. Which of the drawings depicts the electron configuration of carbon?
_____8. Which of the drawings depicts the electron configuration of nitrogen?
_____9. Which of the drawings is an atom with the atomic number of eight?
_____10. Which of the drawings depicts an atom that is likely to gain one electron?
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Biol 1406: Exam I
V. (8 points) Fill in the map with the appropriate words below.
Macromolecules
1._____________
3._____________
5._____________
types
classes
Polysaccharides
Triglycerides
7._____________
include
composed of
Polypeptides
RNA
contain
composed of
DNA
consist of
2._____________
consist of
composed of
two
monosaccharides
4._________
Disaccharides
Monosaccharides
Nucleotides
Fatty Acids
glycerol
Carbohydrates
DNA
Nucleic Acids
Amino Acids
6._____________
8._____________
Nitrogen Bases
Lipids
Saturated
Proteins
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Biol 1406: Exam I
VI. (10 points) Lab material. For questions 1-5, identify the parts of the microscope at the front of the room with
the correct answer. For 6-10, answer the questions.
1. ___________________________________________
2. ___________________________________________
3. ___________________________________________
4. ___________________________________________
5. ___________________________________________
Ocular
Base
Arm
Viewing Tube
Nosepiece
Objective lens
Coarse Adjustment Knob
Iris Diaphragm
Illuminator
Fine Adjustment Knob
Stage
Slide Clips
_____________________________________________
6. If you are looking at a specimen with the high power objective (43X), what is the total magnification of the image?
7. What is one difference between plant and animal cells?
8. The basic organization of living things are cells  tissues  ________________.
9. The name of the exotic aquatic plant we looked at that is causing serious ecological problems in central Texas aquatic
environments is ________________.
10. The green organelles in the plant cells where photosynthesis takes place are called __________________.
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Biol 1406: Exam I
VI. (20 points) Short Answer/Essay. CHOOSE ONLY ONE! You may use the back of the page if necessary.
Essay 1. Water is a unique substance because it has a variety of special properties.
(6 points) (A) Draw the molecular structure of a water molecule and indicate the positively and negatively charged
regions of the molecule
(6 points) (B) Tommy took temperature readings of a pond from the surface to the bottom and he recorded the following
temperatures: 0C, 2C, 3C, and 4C. Draw a profile of the pond and indicate where the temperature readings were
found.
(8 points) (C) Describe the key properties of water that make it so important in biological systems.
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Biol 1406: Exam I
Essay 2.
From the Temple Daily Telegram (Sunday, Feb 3, 2002)
"Saying the site of women's bare breasts can insight a riot, Austin Police will ticket women who bare their bosom during
Mardi Gras celebrations in the 6th street entertainment district.
Police cited the practice as a factor in fighting that broke out during the celebration last year. Police had to subdue
hundreds of people when seven or eight teenagers started fighting after a woman displayed her breasts last year.
In an effort to prevent a similar situation during this years celebrations, women who bare their breast and men who hold
topless women on their shoulders in public in the 6th street entertainment district Feb 8-12 will be cited for disorderly
conduct, police said Friday."
A. (5 points) List the steps of the scientific method and indicate which steps the Austin Police Department completed
(according to the article).
B. (5 points) Draw a graph illustrating the relationship between fighting and the exposure of breasts cited by police.
C. (5 points) How would you test the hypothesis in part B? (Be specific - how would you set up an experiment?)
D. (5 points) Is the Austin Police Dept.'s conclusion scientifically acceptable (based on your answer to part A)? Why or
why not?
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