AnswersHVA 26-27 IM Biology AAsexual and Sexual Reproduction

Asexual and Sexual Reproduction — Unit test Answers

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Which statement correctly compares and contrasts the three stages of cellular respiration that occur in the presence of oxygen?

A
Each stage occurs in the mitochondria, but only the final stage produces ATP.
B
Each stage produces ATP, but only the third stage occurs in the mitochondria.
C
Each stage produces ATP, but only the first stage occurs in the cytoplasm.
D
Each stage occurs in the cytoplasm, but only the final stage produces ATP.
22
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When skin cells are damaged by sunlight or injury, the cell cycle helps by promoting.

A
reproduction.
B
repair.
C
synthesis.
D
growth.
23

Which process is similar to binary fission?

A
genetic variation
B
crossing over
C
meiosis
D
mitosis
24

An important difference between cellular respiration and photosynthesis is that when cellular respiration begins, glucose molecules are split. However, when photosynthesis begins

A
ADP molecules are split.
B
water molecules are split.
C
oxygen molecules are split.
D
carbon dioxide molecules are split.
25

Which best describes the processes of mitosis and meiosis?

A
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.
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 once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells.
D
Cells in mitosis and meiosis go through the PMAT stages once to produce diploid cells.
26

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 flow out of the thylakoid, providing energy to add a phosphate group to ADP.
B
They build up in the thylakoid, providing energy to break apart ATP molecules.
C
They build up in the thylakoid, where they bond to each other to create ATP.
D
They flow out of the thylakoid, where they stimulate enzymes to break apart ATP.
27

Which statement is factual?

A
Asexual reproduction produces offspring that are identical to the parent.
B
Sexual reproduction allows for diploid gametes to combine to increase genetic variation.
C
Asexual reproduction leads to the formation of haploid gametes.
D
Sexual reproduction does not require the production of gametes.
28

How has the study of mitosis affected scientists’ knowledge of cancer?

A
It led to a study of how to induce cancer cells to divide more rapidly.
B
It led to an understanding of how cancer cells divide so rapidly.
C
It led to the development of contact-inhibition regulators.
D
It led to the discovery of how to prevent cancer cells from dividing.
29

During which step of cellular respiration is the most ATP produced?

A
Krebs cycle
B
glycolysis
C
photosynthesis
D
electron transport chain
30

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
independent assortment
C
crossing over
D
chromosome replication
31

The illustration below shows the steps of meiosis I. What is the step that is labeled D?

Question illustration
A
metaphase I
B
metaphase II
C
telophase II
D
telophase I

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