Question 1

What is the final net number of ATP molecules that can be produced per glucose molecule by cellular respiration?

Accepted Answer

A) 36 
B) 4 
C) 8 
D) 2 
E) 38 
A) 36 
B) 4 
C) 8 
D) 2 
E) 38

Question 2

What is the energy source used to drive ATP synthase to produce ATP?

Accepted Answer

A) glucose coming across the mitochondrial inner membrane 
B) H⁺ ions flowing across the mitochondrial inner membrane 
C) acetyl CoA coming across the mitochondrial inner membrane 
D) NADH coming across the mitochondrial inner membrane 
E) electrons flowing through the electron transport chain 
A) glucose coming across the mitochondrial inner membrane 
B) H⁺ ions flowing across the mitochondrial inner membrane 
C) acetyl CoA coming across the mitochondrial inner membrane 
D) NADH coming across the mitochondrial inner membrane 
E) electrons flowing through the electron transport chain

Question 3

Which of the following types of foods can be oxidized by aerobic respiration?

Accepted Answer

A) only glucose 
B) only fats 
C) only proteins 
D) only glucose and fats 
E) glucose, fats, and proteins 
A) only glucose 
B) only fats 
C) only proteins 
D) only glucose and fats 
E) glucose, fats, and proteins

Question 4

Oxidation involves the ________ ,and reduction involves the

Accepted Answer

A) gain of oxygen; loss of oxygen 
B) loss of oxygen; gain of oxygen 
C) loss of electrons; gain of electrons 
D) gain of electrons; loss of electrons 
A) gain of oxygen; loss of oxygen 
B) loss of oxygen; gain of oxygen 
C) loss of electrons; gain of electrons 
D) gain of electrons; loss of electrons

Question 5

Why do biologists believe glycolysis evolved before the Krebs cycle and the electron transport chain?

Accepted Answer

A) Glycolysis occurs in the mitochondria, which all organisms have. 
B) Glycolysis requires oxygen, which was one of the first elements on Earth. 
C) All organisms use glycolysis; not all use the Krebs cycle and the electron transport chain. 
D) Glycolysis is the most efficient at producing energy. 
A) Glycolysis occurs in the mitochondria, which all organisms have. 
B) Glycolysis requires oxygen, which was one of the first elements on Earth. 
C) All organisms use glycolysis; not all use the Krebs cycle and the electron transport chain. 
D) Glycolysis is the most efficient at producing energy.

Question 6

A total of four ATP molecules have to be used by aerobic respiration in eukaryotic cells.Where are these four ATP molecules used?

Accepted Answer

A) One molecule is used to start glycolysis, and three are used to move NADH made during glycolysis into the mitochondria. 
B) Three molecules are used to start glycolysis, and one is used to move NADH made during glycolysis into the mitochondria. 
C) Two molecules are used to start glycolysis, and two are used to move NADH made during glycolysis into the mitochondria. 
D) All four molecules are used to start glycolysis. 
E) All four molecules are used to move NADH made during glycolysis into the mitochondria. 
A) One molecule is used to start glycolysis, and three are used to move NADH made during glycolysis into the mitochondria. 
B) Three molecules are used to start glycolysis, and one is used to move NADH made during glycolysis into the mitochondria. 
C) Two molecules are used to start glycolysis, and two are used to move NADH made during glycolysis into the mitochondria. 
D) All four molecules are used to start glycolysis. 
E) All four molecules are used to move NADH made during glycolysis into the mitochondria.

Question 7

The enzymes used by the Krebs cycle are located:

Accepted Answer

A) in the cytosol. 
B) in the inner compartment of the mitochondrion. 
C) attached to the inner mitochondrial membrane. 
D) between the inner membrane and outer mitochondrial membrane. 
A) in the cytosol. 
B) in the inner compartment of the mitochondrion. 
C) attached to the inner mitochondrial membrane. 
D) between the inner membrane and outer mitochondrial membrane.

Question 8

The term aerobic means:

Accepted Answer

A) ATP-dependent. 
B) carbon dioxide-dependent. 
C) oxygen-dependent. 
D) oxygen-independent. 
A) ATP-dependent. 
B) carbon dioxide-dependent. 
C) oxygen-dependent. 
D) oxygen-independent.

Question 9

The majority of ATP in aerobic respiration is produced by:

Accepted Answer

A) the Krebs cycle. 
B) glycolysis. 
C) the electron transport chain. 
A) the Krebs cycle. 
B) glycolysis. 
C) the electron transport chain.

Question 10

Refer to the figure below, and then answer the question that follows.
  
-As electrons move through the electron transport chain,which of the following occurs?

Accepted Answer

A) Electrons are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion. 
B) Hydrogen ions move down their concentration gradient from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion. 
C) Energy from ATP is used to pump hydrogen ions across the inner membrane of the mitochondrion. 
D) ATP is synthesized from ADP and P as hydrogen ions flow down the electron transport chain. 
E) Hydrogen ions are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion. 
A) Electrons are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion. 
B) Hydrogen ions move down their concentration gradient from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion. 
C) Energy from ATP is used to pump hydrogen ions across the inner membrane of the mitochondrion. 
D) ATP is synthesized from ADP and P as hydrogen ions flow down the electron transport chain. 
E) Hydrogen ions are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion.

Question 11

Which of the following statements is true of aerobic respiration?

Accepted Answer

A) Fats proceed through aerobic respiration in exactly the same manner as glucose. 
B) Proteins proceed through aerobic respiration in exactly the same manner as glucose. 
C) Glucose will be completely broken down even if oxygen is not present. 
D) Glucose, fats, and proteins can be oxidized by aerobic respiration 
A) Fats proceed through aerobic respiration in exactly the same manner as glucose. 
B) Proteins proceed through aerobic respiration in exactly the same manner as glucose. 
C) Glucose will be completely broken down even if oxygen is not present. 
D) Glucose, fats, and proteins can be oxidized by aerobic respiration

Question 12

The end products that come out of the Krebs cycle include all of the following except:

Accepted Answer

A) NADH. 
B) pyruvic acid. 
C) FADH₂. 
D) CO₂. 
E) ATP. 
A) NADH. 
B) pyruvic acid. 
C) FADH₂. 
D) CO₂. 
E) ATP.

Question 13

Before proteins can be used for cellular respiration,they must be broken down into:

Accepted Answer

A) pyruvate. 
B) fatty acids. 
C) amino acids. 
D) glucose. 
A) pyruvate. 
B) fatty acids. 
C) amino acids. 
D) glucose.

Question 14

In which of the following reactions is reduction taking place?

Accepted Answer

A) NAD⁺ → NADH 
B) FADH → FAD⁺ 
C) NADH → NAD⁺ 
A) NAD⁺ → NADH 
B) FADH → FAD⁺ 
C) NADH → NAD⁺

Question 15

Human babies and animals adapted to the cold are able to maintain their body temperatures because of the presence of brown fat.The mitochondria in brown fat have a protein in them called thermogenin,which allows the flow of hydrogen ions back through the inner mitochondrial membrane (bypassing the ATP synthase).Based on this and your understanding of cellular respiration,propose a mechanism by which brown fat helps keep babies and other animals warm.

Accepted Answer

The hydrogen ion gradient stores energy,

Question 16

The majority of ATP produced during aerobic respiration is produced during glycolysis.

Accepted Answer

A) True 
 B)False

Question 17

During aerobic respiration,the final electron acceptor is ________.

Accepted Answer

The answer of During aerobic respiration,the final electron acceptor is...

Question 18

How many turns of the Krebs cycle are needed to completely break down one molecule of glucose?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 19

Glycolysis occurs in the ________,the Krebs cycle occurs in the ________,and the electron transport chain occurs in the ________ membrane.

Accepted Answer

A) mitochondria; mitochondria; mitochondrial 
B) cytoplasm; mitochondria; mitochondrial 
C) mitochondria; cytoplasm; plasma 
D) cytoplasm; cytoplasm; plasma 
E) cytoplasm; mitochondria; plasma 
A) mitochondria; mitochondria; mitochondrial 
B) cytoplasm; mitochondria; mitochondrial 
C) mitochondria; cytoplasm; plasma 
D) cytoplasm; cytoplasm; plasma 
E) cytoplasm; mitochondria; plasma

Question 20

As you know,all living things require a source of nutrients.Using animals as an example,explain what these nutrients are used for once they leave the digestive tract.

Accepted Answer

Animals need to eat so that th

Exam 7: Vital Harvest: Deriving Energy From Food

What is the final net number of ATP molecules that can be produced per glucose molecule by cellular respiration?

What is the energy source used to drive ATP synthase to produce ATP?

Which of the following types of foods can be oxidized by aerobic respiration?

Oxidation involves the ________ ,and reduction involves the

Why do biologists believe glycolysis evolved before the Krebs cycle and the electron transport chain?

A total of four ATP molecules have to be used by aerobic respiration in eukaryotic cells.Where are these four ATP molecules used?

The enzymes used by the Krebs cycle are located:

The term aerobic means:

The majority of ATP in aerobic respiration is produced by:

Refer to the figure below, and then answer the question that follows. -As electrons move through the electron transport chain,which of the following occurs?

Which of the following statements is true of aerobic respiration?

The end products that come out of the Krebs cycle include all of the following except:

Before proteins can be used for cellular respiration,they must be broken down into:

In which of the following reactions is reduction taking place?

The majority of ATP produced during aerobic respiration is produced during glycolysis.

During aerobic respiration,the final electron acceptor is ________.

How many turns of the Krebs cycle are needed to completely break down one molecule of glucose?

Glycolysis occurs in the ________,the Krebs cycle occurs in the ________,and the electron transport chain occurs in the ________ membrane.

As you know,all living things require a source of nutrients.Using animals as an example,explain what these nutrients are used for once they leave the digestive tract.

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

Filters

Glycolysis occurs in the ,the Krebs cycle occurs in the ,and the electron transport chain occurs in the membrane.