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Practice Test Answers

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Which series of diagrams correctly represents the order of mitosis?

A
Image with description The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 3, the chromosomes line up at the center. In step 4, the cell is divided.
B
Image with description The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromosomes line up at the center. In step 4, the chromatids separate from each other and are pulled to opposite ends of the cell.
C
Image with description The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromosomes line up at the center. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the cell is divided.
D
Image with description The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the chromosomes line up at the center.
2
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Which statement describes thylakoids?

A
Only photosystem II functions here.
B
Water molecules are formed here.
C
Photosystems I and II function here.
D
Glucose is formed here.
3

How does ATP supply energy for cellular activities?

A
by attaching itself to a glucose molecule
B
by releasing the sugar molecule from its structure
C
by adding a phosphate group to its structure
D
by breaking off a phosphate group from its structure
4

Which best defines a diploid cell during meiosis?

A
a cell that has double the number of chromosomes as the daughter cell
B
a cell that has double the number of chromosomes as the parent cell
C
a cell that has half the number of chromosomes as the parent cell
D
a cell that has half the number of chromosomes as the daughter cell
5

Which is the final electron acceptor in the electron transport chain of cellular respiration?

A
FADH sub 2
B
oxygen
C
NADH
D
carbon dioxide
6

If an organism's diploid number is 12, what would be its haploid number?

A
3
B
24
C
48
D
6
7

Why is the Calvin cycle considered a dark reaction?

A
It can proceed in the dark.
B
It turns the plant dark green.
C
It occurs only at night.
D
It requires an absence of light.
8

Rapid reproduction is an advantage of which process?

A
gamete formation
B
chromosome duplication
C
sexual reproduction
D
asexual reproduction
9

What is carbon fixation, and how does it relate to photosynthesis?

A
It is the reduction of CO sub 2 , and it occurs during the Calvin cycle.
B
It is the absorption of CO 2 from the air, and it occurs during the light-dependent reactions.
C
It is the conversion of CO sub 2 into organic compounds, and it forms 3-PGA.
D
It is the production of CO sub 2 during regeneration, and it forms RuBP.
10

Which term identifies a light-absorbing pigment?

A
ferredoxin
B
chlorophyll
C
thylakoid
D
photosystem
11

Which statement best summarizes the importance of meiosis to reproduction?

A
It produces diploid cells that are needed for asexual reproduction.
B
It produces gametes that are needed for asexual reproduction.
C
It produces gametes that are needed for sexual reproduction.
D
It produces diploid cells that are needed for sexual reproduction.
12

Which part of cell division is different in plant and animal cells?

A
mitosis
B
cytokinesis
C
anaphase
D
eukaryotic

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