AnswersGCS 2025-2026 Biology Credit RecoveryUnit Test

Unit Test — Unit test Answers

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21
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Which term is correctly paired with its role in the body?

A
insulin – a sugar that regulates blood glycogen levels
B
ADP – a molecule that releases energy when it forms ATP
C
glycogen – a hormone found in blood that regulates blood glucose levels
D
glucose – a sugar found in blood that can be broken down to produce ATP
22
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Which equation represents fertilization?

A
haploid + diploid = diploid
B
diploid + haploid = haploid
C
haploid + haploid = diploid
D
diploid + diploid = diploid
23

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

A
NADH
B
FADH2
C
oxygen
D
carbon dioxide
24

Which best illustrates the result of the process of meiosis?

A
A pea plant has the same flower color as its parent plants.
B
A daughter looks different from both her mother and her father.
C
A cheetah cub has very similar fur to its mother.
D
A Labrador puppy looks exactly like its father.
25

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

A
ATP stores energy as a phosphate bond is formed.
B
ATP releases energy as a phosphate bond is formed.
C
ATP releases energy as a phosphate bond is broken.
D
ATP stores energy as a phosphate bond is broken.
26

Which term identifies a light-absorbing pigment?

A
photosystem
B
ferredoxin
C
thylakoid
D
chlorophyll
27

Rapid reproduction is an advantage of which process?

A
gamete formation
B
sexual reproduction
C
asexual reproduction
D
chromosome duplication
28

Which statement best distinguishes the light-dependent (L-D) reactions from the light-independent (L-IND) reactions?

A
The L-D reactions occur in the thylakoid membrane, and the L-IND reactions occur in the stroma.
B
The L-D reactions occur in the cytoplasm, and the L-IND reactions occur in the chloroplast.
C
The L-D reactions occur in the chloroplast, and the L-IND reactions occur in the mitochondria.
D
The L-D reactions occur in the stroma, and the L-IND reactions occur in the cytoplasm.
29

Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. What is the purpose of growing cancer cells in a laboratory?

A
to test medicinal treatments before giving them to patients
B
to replace cancer cells with healthy cells
C
to provide evidence of cancer cells in the patient
D
to stop the cancer from growing in the patient

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