Question 1

To be able to continue, each turn of the Krebs cycle must regenerate which of the following as a final product?

Accepted Answer

A)   Acetyl CoA
B)   Oxaloacetate
C)   NADH and FADH2
D)   Pyruvate
E)   ATPF) C) and D)
G) B) and E)

Question 2

Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?

Accepted Answer

A)   Pyruvate
B)   Lactic acid
C)   Acetyl CoA
D)   Hydrochloric acid
E)   Citric acidF) A) and B)
G) A) and C)

Question 3

In the process of cellular respiration, a molecule of _ is completely broken down to form ,
, and .

Accepted Answer

glucose; H...

Question 4

The conversion of glucose to lactate is a form of .

Accepted Answer

The answer of The conversion of glucose to lactate is...

Question 5

Which of the following parts of the mitochondria is (are)  directly involved in the synthesis of ATP during chemiosmosis?

Accepted Answer

A)   Matrix only
B)   Outer membrane only
C)   Inner and outer membranes
D)   Matrix and inner membrane
E)   Inner membrane onlyF) A) and E)
G) A) and D)

Question 6

Which of the following statements is TRUE of glycolysis?

Accepted Answer

A)   It only takes place under anaerobic conditions.
B)   It can be performed only by bacteria.
C)   It produces a net gain of ATP.
D)   It produces more ATP than does aerobic respiration.
E)   It produces a net gain of FADH.F) A) and D)
G) A) and B)

Question 7

In the absence of oxygen, suppose a single yeast cell undergoes fermentation and uses 100 molecules of glucose. How many molecules of ATP will be generated?

Accepted Answer

A)   400
B)   200
C)   36
D)   300
E)   100F) None of the above
G) A) and E)

Question 8

Within a cell undergoing anaerobic metabolism of glucose, fermentation occurs in the

Accepted Answer

A)   fluid portion of the cytoplasm.
B)   nucleus.
C)   mitochondrial matrix.
D)   stroma of the chloroplast.
E)   phospholipid bilayer of the cell membrane.F) C) and E)
G) None of the above

Question 9

If glucose is metabolized under completely anaerobic conditions, pyruvate

Accepted Answer

A)   immediately enters the Krebs cycle.
B)   is converted to NADH.
C)   is converted by fermentation to lactate or CO2 + ethanol.
D)   is converted back to fructose until the concentration of oxygen increases.
E)   leaves the fluid portion of the cytoplasm and enters the mitochondrial matrix.F) D) and E)
G) B) and E)

Question 10

Some of the CO2 that is exhaled during breathing is created during

Accepted Answer

A)   the reduction of oxygen in the ETC.
B)   glycolysis.
C)   the conversion of pyruvate to acetyl CoA.
D)   fermentation.
E)   chemiosmosis.F) A) and B)
G) B) and E)

Question 11

How does baker's yeast in bread dough make the bread rise?

Accepted Answer

Bread rises due to t...

Question 12

The end product of glycolysis is

Accepted Answer

A)   two citric acid molecules.
B)   one lactate molecule.
C)   two pyruvate molecules.
D)   one G3P molecule.
E)   two NAD+ molecules.F) All of the above
G) None of the above

Question 13

Some plans for weight loss include eating a low- carbohydrate diet. In the absence of a lot of glucose in the diet, what other food molecules can be used to extract energy for cellular respiration?

Accepted Answer

A)   Protein and fats
B)   Protein only
C)   Fats onlyD) A) and B)
E) A) and C)

Question 14

The anaerobic breakdown of glucose is called

Accepted Answer

A)   the Krebs cycle.
B)   cellular respiration.
C)   fermentation.
D)   phosphorylation.
E)   chemiosmosis.F) C) and E)
G) A) and E)

Question 15

If ATP is made in the mitochondria, how does it provide energy for reactions in the cytoplasm of the cell?

Accepted Answer

A)   The energy in ATP is converted to NADH, which travels to the cytoplasm.
B)   ATP diffuses into the cytoplasm through large pores in the outer membrane of the mitochondria out.
C)   ATP is converted to ADP, which is transported to the cytoplasm and converted back to ATP.
D)   ATP is used to make glucose, which is transported to the cytoplasm.
E)   ATP is pumped out from the intermembrane space of the mitochondria to the cytoplasm.F) B) and C)
G) A) and B)

Question 16

Oxygen is necessary for cellular respiration because oxygen

Accepted Answer

A)   combines with electrons and hydrogen ions to form water.
B)   reduces glucose to form carbon dioxide and water.
C)   combines with carbon to form carbon dioxide.
D)   combines with carbon dioxide and water to form glucose.
E)   combines with electrons to form CO2.F) All of the above
G) C) and D)

Question 17

The process of fermentation is energetically more efficient than that of cellular respiration.

Accepted Answer

A) True 
 B)False

Exam 8: Harvesting Energy: Glycolysis and Cellular Respiration

In the absence of oxygen, suppose a single yeast cell undergoes fermentation and uses 100 molecules of glucose. How many molecules of ATP will be generated?

Correct Answer
verified

The end product of glycolysis is

Correct Answer
verified

In the process of cellular respiration, a molecule of _ is completely broken down to form , , and .

Correct Answer
verified
glucose; H...
View Answer

Which of the following statements is TRUE of glycolysis?

Correct Answer
verified

Oxygen is necessary for cellular respiration because oxygen

Correct Answer
verified

To be able to continue, each turn of the Krebs cycle must regenerate which of the following as a final product?

Correct Answer
verified

Some of the CO₂ that is exhaled during breathing is created during

Correct Answer
verified

How does baker's yeast in bread dough make the bread rise?

Correct Answer
verified
Bread rises due to t...
View Answer

The conversion of glucose to lactate is a form of .

Correct Answer
verified

If ATP is made in the mitochondria, how does it provide energy for reactions in the cytoplasm of the cell?

Correct Answer
verified

Within a cell undergoing anaerobic metabolism of glucose, fermentation occurs in the

Correct Answer
verified

The process of fermentation is energetically more efficient than that of cellular respiration.

Correct Answer
verified

Some plans for weight loss include eating a low- carbohydrate diet. In the absence of a lot of glucose in the diet, what other food molecules can be used to extract energy for cellular respiration?

Correct Answer
verified

If glucose is metabolized under completely anaerobic conditions, pyruvate

Correct Answer
verified

The anaerobic breakdown of glucose is called

Correct Answer
verified

Which of the following parts of the mitochondria is (are) directly involved in the synthesis of ATP during chemiosmosis?

Correct Answer
verified

Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?

Correct Answer
verified

Exam 8: Harvesting Energy: Glycolysis and Cellular Respiration

In the absence of oxygen, suppose a single yeast cell undergoes fermentation and uses 100 molecules of glucose. How many molecules of ATP will be generated?

Correct AnswerverifiedShow Answer

The end product of glycolysis is

Correct AnswerverifiedShow Answer

In the process of cellular respiration, a molecule of _ is completely broken down to form , , and .

Correct Answerverifiedglucose; H...View AnswerShow Answer

Which of the following statements is TRUE of glycolysis?

Correct AnswerverifiedShow Answer

Oxygen is necessary for cellular respiration because oxygen

Correct AnswerverifiedShow Answer

To be able to continue, each turn of the Krebs cycle must regenerate which of the following as a final product?

Correct AnswerverifiedShow Answer

Some of the CO2 that is exhaled during breathing is created during

Correct AnswerverifiedShow Answer

How does baker's yeast in bread dough make the bread rise?

Correct AnswerverifiedBread rises due to t...View AnswerShow Answer

The conversion of glucose to lactate is a form of .

Correct AnswerverifiedShow Answer

If ATP is made in the mitochondria, how does it provide energy for reactions in the cytoplasm of the cell?

Correct AnswerverifiedShow Answer

Within a cell undergoing anaerobic metabolism of glucose, fermentation occurs in the

Correct AnswerverifiedShow Answer

The process of fermentation is energetically more efficient than that of cellular respiration.

Correct AnswerverifiedShow Answer

Some plans for weight loss include eating a low- carbohydrate diet. In the absence of a lot of glucose in the diet, what other food molecules can be used to extract energy for cellular respiration?

Correct AnswerverifiedShow Answer

If glucose is metabolized under completely anaerobic conditions, pyruvate

Correct AnswerverifiedShow Answer

The anaerobic breakdown of glucose is called

Correct AnswerverifiedShow Answer

Which of the following parts of the mitochondria is (are) directly involved in the synthesis of ATP during chemiosmosis?

Correct AnswerverifiedShow Answer

Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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glucose; H...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Some of the CO₂ that is exhaled during breathing is created during

Correct Answer
verified

Correct Answer
verified
Bread rises due to t...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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