Question 1

In animal cells,the primary organelle that generates molecules of ATP is the

Accepted Answer

A)  ribosome. 
B)  lysosome. 
C)  golgi body. 
D)  mitochondrion. 
E)  No answer is correct. 
A)  ribosome. 
B)  lysosome. 
C)  golgi body. 
D)  mitochondrion. 
E)  No answer is correct. D

Question 2

Some microorganisms live in anaerobic environments.These organisms can produce ATP using fermentation which involves

Accepted Answer

A)  glycolysis. 
B)  the Krebs cycle. 
C)  photosynthesis. 
D)  electron transport. 
E)  the Calvin cycle. 
A)  glycolysis. 
B)  the Krebs cycle. 
C)  photosynthesis. 
D)  electron transport. 
E)  the Calvin cycle. A

Question 3

The reactants for cellular respiration are

Accepted Answer

A)  glucose and ATP. 
B)  water and ATP. 
C)  oxygen and ATP. 
D)  glucose and oxygen. 
E)  carbon dioxide and glucose. 
A)  glucose and ATP. 
B)  water and ATP. 
C)  oxygen and ATP. 
D)  glucose and oxygen. 
E)  carbon dioxide and glucose. D

Question 4

When compared to other foods,fats have the most calories per gram.  For energy to be harvested,the long carbon chains are broken into many two-carbon ________ molecules that enter the Krebs cycle.

Accepted Answer

A)  glucose 
B)  pyruvate 
C)  acetyl CoA 
D)  amino acid 
E)  protein 
A)  glucose 
B)  pyruvate 
C)  acetyl CoA 
D)  amino acid 
E)  protein

Question 5

Animals are

Accepted Answer

A)  net O₂ producers and CO₂ consumers. 
B)  net O₂ and CO₂ producers. 
C)  net O₂ consumers and CO₂ producers. 
D)  net O₂ and CO₂ consumers. 
E)  able to conduct photosynthesis, not cellular respiration. 
A)  net O₂ producers and CO₂ consumers. 
B)  net O₂ and CO₂ producers. 
C)  net O₂ consumers and CO₂ producers. 
D)  net O₂ and CO₂ consumers. 
E)  able to conduct photosynthesis, not cellular respiration.

Question 6

In aerobic respiration,which of following is(are)required for ATP production in the electron transport chain?

Accepted Answer

A)  a proton gradient 
B)  the oxidation of the electron carrier molecules 
C)  oxygen 
D)  movement of electrons through proteins 
E)  All of the answer choices are correct. 
A)  a proton gradient 
B)  the oxidation of the electron carrier molecules 
C)  oxygen 
D)  movement of electrons through proteins 
E)  All of the answer choices are correct.

Question 7

In the Investigating Life,Hot Plants Offer Heat Rewards,what did scientists conclude about beetles and self-heating flowers?

Accepted Answer

A)  At higher temperatures resting beetles saved energy. 
B)  At higher temperatures active beetles saved energy. 
C)  At lower temperatures active beetles saved energy. 
D)  At lower temperatures resting beetles saved energy. 
E)  Generating heat led to increased pollination of Philodendron flowers by beetles. 
A)  At higher temperatures resting beetles saved energy. 
B)  At higher temperatures active beetles saved energy. 
C)  At lower temperatures active beetles saved energy. 
D)  At lower temperatures resting beetles saved energy. 
E)  Generating heat led to increased pollination of Philodendron flowers by beetles.

Question 8

Cellular respiration occurs in a sequential order.This allows the cell to

Accepted Answer

A)  store oxygen in the process. 
B)  maintain control over the mitochondria. 
C)  efficiently breakdown glucose without damaging the cell. 
D)  harness all the energy released at one time. 
E)  produce the enzymes needed for cellular respiration very slowly. 
A)  store oxygen in the process. 
B)  maintain control over the mitochondria. 
C)  efficiently breakdown glucose without damaging the cell. 
D)  harness all the energy released at one time. 
E)  produce the enzymes needed for cellular respiration very slowly.

Question 9

Fermentation is most common in

Accepted Answer

A)  plants. 
B)  animals. 
C)  multicellular organisms. 
D)  microorganisms. 
E)  viruses. 
A)  plants. 
B)  animals. 
C)  multicellular organisms. 
D)  microorganisms. 
E)  viruses.

Question 10

As a result of glycolysis,glucose is

Accepted Answer

A)  broken down into two molecules of carbon dioxide. 
B)  combined to form two molecules of pyruvate. 
C)  combined to form two molecules of carbon dioxide. 
D)  broken down into two molecules of pyruvate. 
E)  broken down into two molecules of oxygen. 
A)  broken down into two molecules of carbon dioxide. 
B)  combined to form two molecules of pyruvate. 
C)  combined to form two molecules of carbon dioxide. 
D)  broken down into two molecules of pyruvate. 
E)  broken down into two molecules of oxygen.

Question 11

Aerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

Accepted Answer

A) True 
 B)False

Question 12

The area enclosed by the highly folded inner mitochondrial membrane is the

Accepted Answer

A)  cytosol. 
B)  cristae. 
C)  outer membrane. 
D)  intermembrane compartment. 
E)  mitochondrial matrix. 
A)  cytosol. 
B)  cristae. 
C)  outer membrane. 
D)  intermembrane compartment. 
E)  mitochondrial matrix.

Question 13

Glycolysis has two steps.The first step is the energy investment where ________ is used to activate the glucose molecule.

Accepted Answer

A)  NAD 
B)  ATP 
C)  FAD 
D)  ADP 
E)  NADP 
A)  NAD 
B)  ATP 
C)  FAD 
D)  ADP 
E)  NADP

Question 14

Glycolysis of a glucose molecule

Accepted Answer

A)  produces a net gain of two molecules of ATP. 
B)  occurs only in animal cells. 
C)  transfers electrons to FAD. 
D)  occurs only in microorganisms. 
E)  occurs in mitochondria. 
A)  produces a net gain of two molecules of ATP. 
B)  occurs only in animal cells. 
C)  transfers electrons to FAD. 
D)  occurs only in microorganisms. 
E)  occurs in mitochondria.

Question 15

What is the role of oxygen in aerobic respiration?

Accepted Answer

A)  It is formed from the oxidation of water at the beginning of the electron transport chain. 
B)  It flows through the electron transport chain, losing energy. 
C)  It is reduced at the end of the electron transport chain, forming water. 
D)  It is necessary to obtain any ATP from glucose. 
E)  It flows down its concentration gradient through an ATPase to produce ATP. 
A)  It is formed from the oxidation of water at the beginning of the electron transport chain. 
B)  It flows through the electron transport chain, losing energy. 
C)  It is reduced at the end of the electron transport chain, forming water. 
D)  It is necessary to obtain any ATP from glucose. 
E)  It flows down its concentration gradient through an ATPase to produce ATP.

Question 16

Aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

Accepted Answer

A) True 
 B)False

Question 17

In the electron transport chain,if some of the protons are utilized for other functions in the cell and do not flow through the ATP synthase,then

Accepted Answer

A)  fewer ATP will be made. 
B)  fewer glucose molecules are needed. 
C)  more ATP will be made. 
D)  more glucose molecules are needed. 
E)  more carbon dioxide molecules are generated. 
A)  fewer ATP will be made. 
B)  fewer glucose molecules are needed. 
C)  more ATP will be made. 
D)  more glucose molecules are needed. 
E)  more carbon dioxide molecules are generated.

Question 18

The compound that enters the Krebs cycle is

Accepted Answer

A)  ATP. 
B)  pyruvate. 
C)  PGAL. 
D)  ATP synthase. 
E)  acetyl CoA. 
A)  ATP. 
B)  pyruvate. 
C)  PGAL. 
D)  ATP synthase. 
E)  acetyl CoA.

Question 19

Which of the following is not a product of the Krebs cycle?

Accepted Answer

A)  ATP 
B)  carbon dioxide 
C)  NADH 
D)  FADH₂ 
E)  pyruvate 
A)  ATP 
B)  carbon dioxide 
C)  NADH 
D)  FADH₂ 
E)  pyruvate

Question 20

The electron transport chain produces a(n)________ gradient that provides energy for the ATP synthase.

Accepted Answer

A)  electron 
B)  ATP 
C)  NADH 
D)  oxygen 
E)  proton 
A)  electron 
B)  ATP 
C)  NADH 
D)  oxygen 
E)  proton

Exam 6: Respiration and Fermentation

In animal cells,the primary organelle that generates molecules of ATP is the

Some microorganisms live in anaerobic environments.These organisms can produce ATP using fermentation which involves

The reactants for cellular respiration are

When compared to other foods,fats have the most calories per gram. For energy to be harvested,the long carbon chains are broken into many two-carbon ________ molecules that enter the Krebs cycle.

Animals are

In aerobic respiration,which of following is(are)required for ATP production in the electron transport chain?

In the Investigating Life,Hot Plants Offer Heat Rewards,what did scientists conclude about beetles and self-heating flowers?

Cellular respiration occurs in a sequential order.This allows the cell to

Fermentation is most common in

As a result of glycolysis,glucose is

Aerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

The area enclosed by the highly folded inner mitochondrial membrane is the

Glycolysis has two steps.The first step is the energy investment where ________ is used to activate the glucose molecule.

Glycolysis of a glucose molecule

What is the role of oxygen in aerobic respiration?

Aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

In the electron transport chain,if some of the protons are utilized for other functions in the cell and do not flow through the ATP synthase,then

The compound that enters the Krebs cycle is

Which of the following is not a product of the Krebs cycle?

The electron transport chain produces a(n)________ gradient that provides energy for the ATP synthase.

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