MYA Practice Questions 2022
Date:
Name:
1.
Corn seeds were germinated in a dark room.
Not one of the seedlings was green. When
placed in the light, 75 percent of these seedlings
turned green. Which conclusion about chlorophyll
production in corn plants can most reasonably be
drawn from this information?
A.
Light is the only factor that controls the
production of chlorophyll.
B.
Darkness is the only factor that prevents the
production of chlorophyll.
C.
Light and vitamins are necessary for
chlorophyll production.
3.
A student reported that a wilted stalk of celery
became crisp when placed in a container of
ice water. The student then suggested that
water entered the stalk and made it crisp. This
suggestion is considered to be
A.
a control
B.
a hypothesis
C.
an observation
D. a variable
D. Light and some other factor are necessary for
chlorophyll production.
4.
2.
An experiment was designed to determine the
e ect of nitrates on plant growth. Two groups
of plants were grown under identical conditions,
except one group was watered with a dilute
nitrate solution and the other group received water
without nitrates. In this investigation, the group of
plants grown without added nitrates is known as
the
A student reported that a wilted stalk of celery
became crisp when placed in a container of ice
water. The student's statement was based on
A.
abiotic factor
B.
control
A.
a deduction
B.
C.
variable
C.
a conclusion
D. an observation
a hypothesis
D. environmental stimulus
page 1
5.
The diagrams shown represent an investigation
concerning the growth of bean plants. The roots
of three identical bean plants were each placed
through a hole in covered tubes containing water
as shown in the diagrams. Nothing was done to
plant A. Vaseline was used to cover the upper
surface of the leaves of plant B. Vaseline was used
to cover the lower surface of plant C. The water
level of each tube was marked and the plants were
placed together near a window. After 24 hours,
the water level in each tube was measured.
7.
8.
A
B
C
Which tube represents the control for this
investigation?
A.
6.
A
B.
C.
B
A student records his body temperature at 6:00 am
and 6:00 pm each day for 30 days. He notices a
trend in his temperature data and o ers a possible
explanation. His explanation is known as
A.
raw data
B.
the hypothesis
C.
a limitation
D. an observation
Which organelle is primarily concerned with
the conversion of potential energy of organic
compounds into suitable form for immediate use
by the cell?
A.
mitochondria
B.
centrosomes
C.
ribosomes
D. vacuoules
C
9.
A drug company tested a new medication before
putting it on the commercial market. Pills without
medication were given to 500 test subjects in
group A and pills containing medication were
given to 500 test subjects in group B. In this
experiment, the individuals in group A served as
the
A.
host
B.
C.
control
D. hypothesis
Most of the enzymes involved in aerobic cellular
respiration are located in the organelle labeled
A.
1
B.
2
C.
3
D. 4
variable
page 2
MYA Practice Questions 2022
10.
11.
Which process requires the expenditure of cellular
energy?
A.
passive transport
B.
C.
osmosis
D. di usion
13.
active transport
A.
lipid
B.
disaccharide
C.
nucleic acid
D. protein
A student prepared three di erent red blood cell
suspensions as follows:
Suspension
Contents
A
B
C
red blood cells + normal blood serum
red blood cells + 10% salt solution
red blood cells + distilled water
14.
Which suspension, when viewed under the
microscope, would contain red blood cells that
appear wrinkled and reduced in volume?
A.
12.
A molecule of this substance may be formed as a
result of the hydrolysis of a
A
B.
B
C.
In the accompanying diagram of the plasma
membrane shown, which structures are indicated
by letters A and B?
C
Which suspension represents the control in this
investigation?
A.
A—proteins; B—lipids
B.
A—fats; B—carbohydrates
A.
C.
A—cellulose; B—fats
A
B.
B
C.
C
D. A—water; B—proteins
page 3
MYA Practice Questions 2022
15.
Graph I shows the relationship between the
relative rates of activity of enzymes A and B
and temperature. Graph II shows the relationship
between the relative rates of activity of enzymes A
and B and pH.
16.
Which letter indicates a substrate molecule in this
reaction?
A.
17.
A
B.
B
C.
C
D. D
The graph shows the relationship between the
rate of enzyme action and pH for three enzymes:
pepsin, urease, and trypsin.
Under which conditions is enzyme A most
e ective?
A.
at 40 C and a pH of 5
B.
at 45 C and a pH of 5
C.
at 45 C and a pH of 9
Urease is most e ective at a pH of
D. at 50 C and a pH of 9
A.
page 4
5
B.
7
C.
9
D. 11
MYA Practice Questions 2022
18.
The diagram shown is of the lock-and-key concept
of enzyme action that occurs in humans and on
your knowledge of biology.
21.
Which letter represents an enzyme?
A.
19.
A
B.
E
C.
C
A.
glucose + glucose ! maltose + water
B.
water + carbon dioxide ! glucose + water +
oxygen
C.
glucose + oxygen ! carbon dioxide + water
D. glucose ! alcohol + carbon dioxide
D. D
The raw materials used by green plants for
photosynthesis are
A.
oxygen and water
B.
oxygen and glucose
C.
carbon dioxide and water
22.
D. carbon dioxide and glucose
20.
Which word equation represents a process that
requires the presence of light and chlorophyll?
The process in which the net movement of
molecules is from a region of lower concentration
to a region of higher concentration is known as
A.
active transport
B.
di usion
C.
osmosis
D. passive transport
In the reactions of photosynthesis, simple sugar
molecules are manufactured in the
A.
chloroplasts
B.
mitochondria
C.
stomates
D. vacuoles
page 5
MYA Practice Questions 2022
23.
The diagram shows an investigation performed over
a period of 6 hours. The gas bubbles produced in
this investigation most likely contained molecules
of
25.
If the diploid chromosome number of a cloned
plant is 12, the chromosome number of the plant
cell used to produce the cloned plant is
A.
26.
A.
oxygen
B.
sulfur dioxide
C.
uric acid
D. ammonia
3
B.
6
C.
12
D. 24
Which sequence of processes occurs in the
production of a cloned plant?
A.
meiosis ! new plant
B.
mitosis ! new plant
C.
meiosis ! fertilization ! new plant
D. mitosis ! fertilization ! new plant
24.
In the diagram, which substance belongs in
area Z ?
27.
A.
water
B.
C.
nitrogen
D. carbon
Uncontrolled cell division is characteristic of
A.
cancer
B.
meiosis
C.
budding
D. sporulation
oxygen
page 6
MYA Practice Questions 2022
28.
The diagram shown represents a microscopic
structure observed during the process of cell
division. Letter B indicates a
A.
centrosome
B.
spindle ber
C.
chromatid
29.
All types of asexual reproduction involve the
process known as
A.
mitosis
B.
fertilization
C.
arti cial pollination
D. reduction division
D. cell plate
30.
Which is the correct sequence for the stages of mitotic cell division represented by the diagrams shown?
A.
A! B! C! D
B.
A! C!D !B
C.
B! A! D! C
D. B ! C ! D ! A
A
page 7
B
C
D
MYA Practice Questions 2022