AnswersHVA 26-27 IM Biology AMeiosis

Meiosis — Unit test Answers

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Which are characteristics of epithelial cells? Select two options.

A
are unable to be used for secretion of materials
B
main cells of the nervous system
C
found lining many areas that contact the external environment
D
plays a role in protection
E
carry oxygen through the body
F
make up the skeletal muscle
2
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Which type of cells are the least limited in differentiation?

A
adult stem cells
B
embryonic stem cells
C
amniotic fluid stem cells
D
somatic stem cells
3

In what way are the light-dependent and light-independent reactions of photosynthesis similar?

A
Both require chemical energy to proceed.
B
Both occur in the chloroplast.
C
Both produce oxygen as a byproduct.
D
Both involve carbon fixation.
4

How does interphase prepare cells for mitosis?

A
rest prior to cell division
B
growth of cell and replication of DNA
C
dissolution of nucleus and cell membrane
D
division of cytoplasm
5

Which process produces clones?

A
asexual reproduction
B
sexual reproduction
C
chromosome duplication
D
gamete formation
6

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.
7

Which process connects glycolysis and the citric acid cycle?

A
lactic acid formation
B
acetyl CoA formation
C
electron transport
D
Krebs cycle
8

What is the end result of meiosis?

A
four identical daughter cells
B
four different daughter cells
C
two identical daughter cells
D
two different daughter cells
9

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

A
light energy
B
rubisco
C
3-phosphoglycerate
D
glyceraldehyde 3-phosphate
10

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
11

After Frida stops exercising, she continues to breathe heavily. What is most likely occurring in her body?

A
Heavy breathing during exercise has produced an oxygen surplus in her muscles. This oxygen is being transported to her lungs. This is a result of aerobic respiration.
B
Heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. Lactate is being transported to her liver. This is a result of aerobic respiration.
C
Strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
D
Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
12

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.
13

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

A
the formation of NADPH
B
the production of ATP
C
the splitting of water
D
the excitation of electrons in photosytem I
14

To which substance does ferredoxin transfer an electron?

A
photosystem I
B
photosystem II
C
NADP+
D
NADPH
15

Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. She plans to measure the daily height of the plants for two weeks and graph the data. Which option would allow Stella to set up a control group for the experiment?

A
She should provide mist to each of the plants except one plant to keep the air moist and fertilize the plants.
B
She should give the plants receiving the least CO2 a little more oxygen to compensate for the difference in gases.
C
She should give all the flowers the same amount of water.
D
She should place one flower in a similar container, but not pump carbon dioxide into it.
16

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
17

Which statement best distinguishes an observation from an inference?

A
An inference is likely to change based on additional observations.
B
An observation is likely to change based on additional inferences.
C
An observation involves assumptions, but an inference does not.
D
An inference involves the senses, but an observation does not.
18

Which is an example of how stem cells are currently being used?

A
for generating healthy cells to form replacement organs like brains
B
for directing differentiation to treat diabetes and arthritis
C
for testing for possible side effects of a new cancer medication
D
for curing heart disease by regenerating damaged heart tissue
19

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
undergo meiosis.
C
become cancer cells.
D
produce two identical cells.
20

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

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

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