AnswersTX-Biology A-CRUnit Test

Cellular Respiration Answers

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1
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Which is required for both anaerobic respiration and aerobic respiration?

A
oxygen
B
water
C
mitochondria
D
glucose
2
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What role does cellular respiration play in the water cycle?

A
It removes H2O from the atmosphere during glycolysis.
B
It removes H2O from the atmosphere during acetyl CoA formation.
C
It releases H2O to the atmosphere during the citric acid cycle.
D
It releases H2O to the atmosphere during electron transport.
3

Which process occurs within the mitochondria?

A
lactic acid fermentation
B
alcohol fermentation
C
glycolysis
D
Krebs cycle
4

The graphic shows the citric acid cycle. During the citric acid cycle, what happens to acetyl-CoA?

Question illustration
A
It enters the citric acid cycle and gains carbon dioxide to form citric acid, and gains more carbon dioxide through redox reactions to form a 4-carbon molecule.
B
It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.
C
It enters glycolysis and associates with a 5-carbon molecule through redox reactions, forming another acetyl-CoA molecule.
D
It enters the citric acid cycle and associates with a 4-carbon molecule, forming a 5-carbon compound, and then through oxidation reactions regenerates the 4-carbon molecule.
5

Which is a commercial use for lactic acid fermentation?

A
making starch
B
making bread
C
making wine
D
making cheese
6

What do alcohol fermentation, acetyl CoA formation, and the Krebs cycle have in common?

A
All produce water.
B
All produce carbon dioxide.
C
All produce ATP.
D
All produce alcohol.
7

The Venn diagram compares aerobic respiration and anaerobic respiration.Which statement should be categorized only in the aerobic section of the Venn diagram?

Question illustration
A
occurs in the cytoplasm
B
produces water
C
requires no oxygen
D
is performed by yeast
8

During glycolysis, glucose is broken down into two molecules of pyruvate. What is the main transformation that occurs during glycolysis?

Question illustration
A
Glycolysis produces ATP and pyruvate by oxidizing water.
B
Glycolysis produces ATP and pyruvate by oxidizing glucose and NAD+.
C
Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.
D
Glycolysis produces CO2, ATP, and pyruvate by reducing glucose.
9

Which statement describes the reaction for cellular respiration?

A
The equation is carbon dioxide + water glucose + oxygen + water and energy is required in the form of light
Option A
B
The equation is glucose + oxygen carbon dioxide + water and energy is produced in the form of ATP.
Option B
C
The equation is carbon dioxide + water glucose + oxygen + water and energy is produced in the form of ATP.
Option C
D
The equation is glucose + oxygen carbon dioxide + water and energy is required in the form of light.
Option D
10

Which statement about anaerobic respiration is true?

A
Anaerobic respiration prevents muscle fatigue.
B
Anaerobic respiration generates a high yield of ATP.
C
Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
D
Anaerobic respiration can provide energy to animals for several days in the absence of oxygen.
11

During which process is water produced?

A
alcohol fermentation
B
acetyl CoA formation
C
electron transport chain
D
citric acid cycle
12

The equation shows cellular respiration. During cellular respiration, glucose combines with oxygen to form carbon dioxide, water, and ATP. What happens to the energy in the bonds in glucose?

Question illustration
A
The energy is transferred to oxygen.
B
The energy is transferred to carbon dioxide.
C
The energy is transferred to water.
D
The energy is transferred to ATP.
13

What is the overall net gain of ATP in aerobic respiration per one molecule of glucose?

A
between 0-10
B
between 10-20
C
between 30-40
D
between 40-50
14

What is the main difference between aerobic respiration and anaerobic respiration?

A
Aerobic respiration requires oxygen to proceed, but anaerobic respiration does not.
B
Aerobic respiration occurs during photosynthesis, but anaerobic respiration occurs during cellular respiration.
C
Aerobic respiration produces ATP, but anaerobic respiration does not.
D
Aerobic respiration involves glycolysis, but anaerobic respiration does not.
15

What do aerobic respiration and anaerobic respiration have in common?

A
Both begin with glycolysis.
B
Both occur in mitochondria.
C
Both require oxygen to proceed.
D
Both end with the electron transport chain.
16

Which statement about cellular respiration is true?

A
It produces oxygen.
B
It requires water.
C
It is used by every living cell.
D
It converts energy to food.

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