AnswersFL-2000310-Biology 1 Sem 1 - FlexCatalysts

Catalysts — Unit test Answers

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1
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Which process produces clones?

A
asexual reproduction
B
sexual reproduction
C
chromosome duplication
D
gamete formation
2
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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.
3

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
4

Which statement explains how ATP and its phosphate groups are related to the energy that is used in plant processes?

A
ADP loses a phosphate group to create ATP, which stores energy for making sugars.
B
ADP gains a phosphate group to create ATP, which stores energy for making sugars.
C
ADP loses a phosphate group to create ATP; this process instantly releases energy for making sugars.
D
ADP gains a phosphate group to create ATP; this process results from sugar production.
5

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
6

To which substance does ferredoxin transfer an electron?

A
photosystem I
B
photosystem II
C
NADP+
D
NADPH
7

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

A
during photophosphorylation
B
during carbon fixation
C
immediately after reduction
D
immediately after regeneration
8

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.
9

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.
10

Which process is similar to binary fission?

A
genetic variation
B
crossing over
C
meiosis
D
mitosis
11

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.
12

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

A
Krebs cycle
B
glycolysis
C
photosynthesis
D
electron transport chain
13

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
14

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

A
accumulation of lactic acid
B
accumulation of oxygen
C
depletion of ethanol
D
depletion of carbon dioxide
15

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.
16

Which process connects glycolysis and the citric acid cycle?

A
lactic acid formation
B
acetyl CoA formation
C
electron transport
D
Krebs cycle
17

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
18

What role does cellular respiration play in the carbon cycle?

A
It removes CO2 from the atmosphere during glycolysis.
B
It removes CO2 from the atmosphere during the citric acid cycle.
C
It releases CO2 to the atmosphere during acetyl CoA formation.
D
It releases CO2 to the atmosphere during electron transport.
19

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
20

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.

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