Question 1

In lactate fermentation and alcohol fermentation, the net ATP production is ______ molecules of ATP per molecule of glucose.

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 2

The process of beta oxidation is involved in the breakdown of:

Accepted Answer

A)  starch. 
B)  sucrose. 
C)  proteins. 
D)  nucleic acids. 
E)  triglycerides. 
A)  starch. 
B)  sucrose. 
C)  proteins. 
D)  nucleic acids. 
E)  triglycerides.

Question 3

The inner mitochondrial membrane is permeable to most small molecules and ions.

Accepted Answer

A) True 
 B)False

Question 4

More energy is obtained when glucose is oxidized under aerobic conditions rather than anaerobic conditions.

Accepted Answer

A) True 
 B)False

Question 5

ATP synthase catalyzes the synthesis of ATP from ADP and phosphate.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following statements concerning fermentation is FALSE?

Accepted Answer

A)  It occurs under anaerobic conditions. 
B)  It involves O2 as the ultimate electron acceptor. 
C)  It involves the breakdown of organic molecules. 
D)  It releases less than 686 kcal/mole of glucose. 
E)  It is an exergonic process. 
A)  It occurs under anaerobic conditions. 
B)  It involves O2 as the ultimate electron acceptor. 
C)  It involves the breakdown of organic molecules. 
D)  It releases less than 686 kcal/mole of glucose. 
E)  It is an exergonic process.

Question 7

In the citric acid cycle, ATP is produced in some reactions and consumed in others.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following does NOT occur during the citric acid cycle?

Accepted Answer

A)  decarboxylation 
B)  substrate-level phosphorylation 
C)  oxidation 
D)  oxidative phosphorylation 
E)  regeneration of oxaloacetate 
A)  decarboxylation 
B)  substrate-level phosphorylation 
C)  oxidation 
D)  oxidative phosphorylation 
E)  regeneration of oxaloacetate

Question 9

Which of the following does NOT occur during respiration?

Accepted Answer

A)  hydrolysis of starch to glucose 
B)  formation of acetyl CoA 
C)  electron transport chain 
D)  citric acid cycle 
E)  glycolysis 
A)  hydrolysis of starch to glucose 
B)  formation of acetyl CoA 
C)  electron transport chain 
D)  citric acid cycle 
E)  glycolysis

Question 10

The preparatory phase of glycolysis involves:

Accepted Answer

A)  2 molecules of ATP only. 
B)  2 molecules of NAD+ only. 
C)  2 molecules of NADH only. 
D)  1 molecule of ATP and 1 molecule of NADH. 
E)  1 molecule of ATP and 1 molecule of NAD+. 
A)  2 molecules of ATP only. 
B)  2 molecules of NAD+ only. 
C)  2 molecules of NADH only. 
D)  1 molecule of ATP and 1 molecule of NADH. 
E)  1 molecule of ATP and 1 molecule of NAD+.

Question 11

Pyruvate is converted to acetyl CoA in the ____ of the _____.

Accepted Answer

A)  cytosol; cell 
B)  matrix; mitochondria 
C)  lumen; smooth ER 
D)  cristae; mitochondria 
E)  ribosomes; rough ER 
A)  cytosol; cell 
B)  matrix; mitochondria 
C)  lumen; smooth ER 
D)  cristae; mitochondria 
E)  ribosomes; rough ER

Question 12

Formation of ATP from ADP and phosphate as a result of electron transport occurs in:

Accepted Answer

A)  the citric acid cycle. 
B)  the formation of acetyl CoA. 
C)  fermentation. 
D)  glycolysis. 
E)  oxidative phosphorylation. 
A)  the citric acid cycle. 
B)  the formation of acetyl CoA. 
C)  fermentation. 
D)  glycolysis. 
E)  oxidative phosphorylation.

Question 13

Without a proton gradient across the inner mitochondrial membrane, chemiosmotic coupling cannot occur.

Accepted Answer

A) True 
 B)False

Question 14

Each NADH molecule produced in glycolysis is transported across the mitochondrial membrane at a "cost" of one ATP.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following statements about ATP synthase is FALSE?

Accepted Answer

A)  It synthesizes ATP. 
B)  It transports electrons. 
C)  It binds phosphate. 
D)  It binds ADP. 
E)  It transports hydrogen ions. 
A)  It synthesizes ATP. 
B)  It transports electrons. 
C)  It binds phosphate. 
D)  It binds ADP. 
E)  It transports hydrogen ions.

Question 16

"Catabolism" specifically refers to the various pathways in which organisms ______ organic molecules.

Accepted Answer

A)  synthesize 
B)  break down 
C)  phosphorylate 
D)  oxidize 
E)  reduce 
A)  synthesize 
B)  break down 
C)  phosphorylate 
D)  oxidize 
E)  reduce

Question 17

The most abundant component(s) of the mitochondrial electron transport chain is/are:

Accepted Answer

A)  cytochromes. 
B)  iron-sulfur proteins. 
C)  coenzyme Q. 
D)  NAD+. 
E)  FAD. 
A)  cytochromes. 
B)  iron-sulfur proteins. 
C)  coenzyme Q. 
D)  NAD+. 
E)  FAD.

Question 18

Which of the following statements concerning glycolysis is FALSE?

Accepted Answer

A)  It is considered a primitive process. 
B)  It is an aerobic process. 
C)  It occurs in a series of 10 steps. 
D)  It is carried out by virtually all cells. 
E)  Its reactions are catalyzed by specific enzymes. 
A)  It is considered a primitive process. 
B)  It is an aerobic process. 
C)  It occurs in a series of 10 steps. 
D)  It is carried out by virtually all cells. 
E)  Its reactions are catalyzed by specific enzymes.

Question 19

Most of the enzymes of the citric acid cycle are found in the _____ of the _____.

Accepted Answer

A)  cytosol; cell 
B)  matrix; mitochondria 
C)  lumen; smooth ER 
D)  cristae; mitochondria 
E)  ribosomes; rough ER 
A)  cytosol; cell 
B)  matrix; mitochondria 
C)  lumen; smooth ER 
D)  cristae; mitochondria 
E)  ribosomes; rough ER

Question 20

After glycolysis is completed, the carbon atoms present in a pyruvate molecule move directly into the citric acid cycle.

Accepted Answer

A) True 
 B)False

Exam 6: Respiration

In lactate fermentation and alcohol fermentation, the net ATP production is ______ molecules of ATP per molecule of glucose.

The process of beta oxidation is involved in the breakdown of:

The inner mitochondrial membrane is permeable to most small molecules and ions.

More energy is obtained when glucose is oxidized under aerobic conditions rather than anaerobic conditions.

ATP synthase catalyzes the synthesis of ATP from ADP and phosphate.

Which of the following statements concerning fermentation is FALSE?

In the citric acid cycle, ATP is produced in some reactions and consumed in others.

Which of the following does NOT occur during the citric acid cycle?

Which of the following does NOT occur during respiration?

The preparatory phase of glycolysis involves:

Pyruvate is converted to acetyl CoA in the ____ of the _____.

Formation of ATP from ADP and phosphate as a result of electron transport occurs in:

Without a proton gradient across the inner mitochondrial membrane, chemiosmotic coupling cannot occur.

Each NADH molecule produced in glycolysis is transported across the mitochondrial membrane at a "cost" of one ATP.

Which of the following statements about ATP synthase is FALSE?

"Catabolism" specifically refers to the various pathways in which organisms ______ organic molecules.

The most abundant component(s) of the mitochondrial electron transport chain is/are:

Which of the following statements concerning glycolysis is FALSE?

Most of the enzymes of the citric acid cycle are found in the _____ of the _____.

After glycolysis is completed, the carbon atoms present in a pyruvate molecule move directly into the citric acid cycle.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

Pyruvate is converted to acetyl CoA in the of the _.

Most of the enzymes of the citric acid cycle are found in the _ of the _.