AnswersCMS 2026-2027 Biology CREDIT RECOVERYCellular Energy and Reproduction

Cellular Energy and Reproduction — Test Answers

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1
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Which option would allow Stella to set up a control group for the experiment?

A
She should place one flower in a similar container, but not pump carbon dioxide into it.
B
She should give all the flowers the same amount of water.
C
She should give the plants receiving the least cap c cap o sub 2 a little more oxygen to compensate for the difference in gases.
D
She should provide mist to each of the plants except one plant to keep the air moist and fertilize the plants.
2
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What is the step that is labeled D?

A
metaphase II
B
telophase I
C
metaphase I
D
telophase II
3

Which does the letter A represent in the diagram?

A
centriole
B
centromere
C
chromosome
D
spindle
4

Which conclusion is supported by the graph?

A
The 160-pound person burns about 50 calories per mile while jogging.
B
The 200-pound person burns more calories per hour doing aerobics than doing any other exercise shown.
C
The 200-pound person would need to play volleyball for three hours to burn the same number of calories as he burns in one hour of basketball.
D
The 160-pound person burns about twice as many calories jogging as she does walking.
5

How does interphase prepare cells for mitosis?

A
growth of cell and replication of DNA
B
rest prior to cell division
C
division of cytoplasm
D
dissolution of nucleus and cell membrane
6

Which events take place in the light-dependent reactions of photosynthesis?

A
Light energy is captured by plants; light energy is converted to chemical energy.
B
Light energy is converted to sugars; sugars are broken down for energy.
C
Light energy is captured by plants; light energy is used to make sugar.
D
Light energy is converted to chemical energy; chemical energy is used to make sugar.
7

Umbilical cord blood is a rich source of stem cells. Which possible advance in biology would most likely be a result of performing research with an individual’s banked cord blood?

A
creation of a culture to produce vitamin E
B
creation of a personalized cell replacement therapy for the donor
C
creation of a skin graft for an unrelated burn victim
D
creation of a novel cancer cell line to test anticancer agents
8

It is crucial that the process of mitosis is error free. This is because otherwise healthy cells can

A
grow into giant super cells.
B
produce two identical cells.
C
become cancer cells.
D
undergo meiosis.
9

An individual is severely burned in a fire. Which of these procedures would help doctors make replacement skin tissue for the patient?

A
manipulating adult stem cells to grow new skin tissue
B
growing a layer of skin cells on a matrix that provides structure
C
creating skin tissue by combining cells from different cell lines
D
using reproductive cloning to produce a new layer of skin
10

Which best describes the processes of mitosis and meiosis?

A
Cells in mitosis and meiosis go through the PMAT stages once to produce diploid cells.
B
Cells in mitosis and meiosis go through the PMAT stages twice to produce haploid cells.
C
Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells.
D
Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells.
11

Which speeds up the reaction between carbon dioxide and RuBP to restart the Calvin Cycle?

A
3-phosphoglycerate
B
glyceraldehyde 3-phosphate
C
light energy
D
rubisco
12

Which process is similar to binary fission?

A
mitosis
B
genetic variation
C
meiosis
D
crossing over
13

At which point is G3P removed from the Calvin cycle to be used in the production of carbohydrates?

A
immediately after reduction
B
during carbon fixation
C
immediately after regeneration
D
during photophosphorylation
14

Which correctly describes crossing over?

A
the process whereby sister chromatids are pulled to opposite poles of the cell
B
the process whereby homologous chromosome pairs align randomly along the metaphase plate
C
the process whereby non-sister chromatids exchange genetic material
D
the process whereby homologous chromosomes are pulled to opposite poles of the cell
15

Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?

A
fertilization
B
chromosome replication
C
crossing over
D
independent assortment
16

Which specific process in the light-dependent reactions produces oxygen and hydrogen ions?

A
the excitation of electrons in photosytem I
B
the production of ATP
C
the splitting of water
D
the formation of NADPH
17

Which process connects glycolysis and the citric acid cycle?

A
Krebs cycle
B
lactic acid formation
C
acetyl CoA formation
D
electron transport
18

If a runner is doing vigorous exercise, which results from the anaerobic cellular process?

A
accumulation of oxygen
B
depletion of carbon dioxide
C
accumulation of lactic acid
D
depletion of ethanol
19

During photosynthesis, the energy from sunlight is used to split water molecules. What happens to the hydrogen ions that are split from the water molecules?

A
They build up in the thylakoid, providing energy to break apart ATP molecules.
B
They flow out of the thylakoid, where they stimulate enzymes to break apart ATP.
C
They flow out of the thylakoid, providing energy to add a phosphate group to ADP.
D
They build up in the thylakoid, where they bond to each other to create ATP.
20

Which statement correctly compares the body’s energy storage molecules?

A
Glycogen is the body’s main source of energy, but proteins contain most of the body’s stored energy.
B
Glycogen is the body’s main source of energy, but lipids contain most of the body’s stored energy.
C
Proteins are the body’s main source of energy, but lipids contain most of the body’s stored energy.
D
Lipids are the body’s main source of energy, but glycogen contains most of the body’s stored energy.

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