AnswersBiologyCellular Energy and Reproduction

Practice Test Answers

16 verified answers
1
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Which statement best summarizes the importance of meiosis to reproduction?

A
It produces diploid cells that are needed for sexual reproduction.
B
It produces gametes that are needed for sexual reproduction.
C
It produces diploid cells that are needed for asexual reproduction.
D
It produces gametes that are needed for asexual reproduction.
2
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Which best describes stem cells?

A
Self-renewal produces specialized cells from differentiated cells.
B
Differentiation produces stem cells from specialized cells.
C
Self-renewal produces differentiated cells from stem cells.
D
Differentiation produces specialized cells from stem cells.
3

Which statement describes thylakoids?

A
Water molecules are formed here.
B
Photosystems I and II function here.
C
Only photosystem II functions here.
D
Glucose is formed here.
4

Which term identifies a light-absorbing pigment?

A
chlorophyll
B
thylakoid
C
photosystem
D
ferredoxin
5

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

A
3
B
24
C
6
D
48
6

Which of these can combine in a cell to convert a lower-energy molecule into a higher-energy molecule?

A
ADP plus cap p
B
ATP plus cap p plus energy
C
ATP plus cap p
D
ADP plus cap p plus energy
7

Rapid reproduction is an advantage of which process?

A
asexual reproduction
B
sexual reproduction
C
gamete formation
D
chromosome duplication
8

How does ATP supply energy for cellular activities?

A
by releasing the sugar molecule from its structure
B
by attaching itself to a glucose molecule
C
by breaking off a phosphate group from its structure
D
by adding a phosphate group to its structure
9

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

A
eukaryotic
B
cytokinesis
C
anaphase
D
mitosis
10

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

A
It is the absorption of CO 2 from the air, and it occurs during the light-dependent reactions.
B
It is the production of CO sub 2 during regeneration, and it forms RuBP.
C
It is the reduction of CO sub 2 , and it occurs during the Calvin cycle.
D
It is the conversion of CO sub 2 into organic compounds, and it forms 3-PGA.
11

Which series of diagrams correctly represents the order of mitosis?

A
Image with description Four cell diagrams show stages of mitosis from left to right: chromosomes inside a nucleus, chromosomes aligned at the center with spindle fibers attached, chromatids separating toward opposite poles, and two chromosome groups inside dotted circular outlines.
B
Image with description Four cell diagrams show stages of mitosis from left to right: chromosomes inside a nucleus, two chromosome groups inside dotted circular outlines, chromosomes aligned at the center with spindle fibers attached, and chromatids separating toward opposite poles.
C
Image with description Four cell diagrams show stages of mitosis from left to right: chromosomes inside a nucleus, chromatids separating toward opposite poles, chromosomes aligned at the center with spindle fibers attached, and two chromosome groups inside dotted circular outlines.
D
Image with description Four cell diagrams show stages of mitosis from left to right: chromosomes inside a nucleus, two chromosome groups inside dotted circular outlines, chromatids separating toward opposite poles, and chromosomes aligned at the center with spindle fibers attached.
12

How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?

A
ATP stores energy as a phosphate bond is broken.
B
ATP stores energy as a phosphate bond is formed.
C
ATP releases energy as a phosphate bond is broken.
D
ATP releases energy as a phosphate bond is formed.
13

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

A
NADH
B
oxygen
C
FADH sub 2
D
carbon dioxide
14

Which is the first type of cell to differentiate?

A
blood cell
B
neuron
C
muscle cell
D
epithelial cell
15

Which best defines a diploid cell during meiosis?

A
a cell that has half the number of chromosomes as the parent cell
B
a cell that has half the number of chromosomes as the daughter cell
C
a cell that has double the number of chromosomes as the parent cell
D
a cell that has double the number of chromosomes as the daughter cell
16

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 requires an absence of light.
D
It occurs only at night.

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