Question 1

In the diagram of the citric acid cycle shown, what do the two points indicated by an asterisk have in common?

Accepted Answer

A) CO2 is produced. 
B) NAD+ is reduced. 
C) ATP is produced. 
D) All will occur. 
A) CO2 is produced. 
B) NAD+ is reduced. 
C) ATP is produced. 
D) All will occur.

Question 2

Glycolysis occurs within the _____ .

Accepted Answer

A) mitochondria 
B) nucleus 
C) vacuoles 
D) cytoplasm 
A) mitochondria 
B) nucleus 
C) vacuoles 
D) cytoplasm

Question 3

Glycolysis

Accepted Answer

A) costs two ATP molecules at the beginning of the process. 
B) produces four ATP molecules. 
C) has a resultant molecule that enters the next step of the process, the citric acid cycle. 
D) More than one response is correct. 
A) costs two ATP molecules at the beginning of the process. 
B) produces four ATP molecules. 
C) has a resultant molecule that enters the next step of the process, the citric acid cycle. 
D) More than one response is correct.

Question 4

The electron transport chain exists for the purpose of removing excess electrons from the cell.

Accepted Answer

A) True 
 B)False

Question 5

The following represents overall net equation for the citric acid cycle. 
 acetyl CoA + 3NAD+ + FAD + GDP + Pi + 2H2O 
                                          ⎠ 2CO2 + CoA-S-H + 3NADH + 2H+ + FADH2 + GTP

Accepted Answer

A) True 
 B)False

Question 6

The processes of producing both lactate and ethanol are anaerobic processes.

Accepted Answer

A) True 
 B)False

Question 7

The citric acid cycle (CAC)is also called the tricarboxylic acid (TCA)cycle and the Krebs cycle.

Accepted Answer

A) True 
 B)False

Question 8

Glycogen breakdown is increased in muscle tissue by the presence of epinephrine.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is an allosteric enzyme which serves as a control point in the citric acid cycle?

Accepted Answer

A) malate dehydrogenase 
B) fumarase 
C) citrate synthetase 
D) succinate dehydrogenase 
A) malate dehydrogenase 
B) fumarase 
C) citrate synthetase 
D) succinate dehydrogenase

Question 10

Insulin causes

Accepted Answer

A) liver to release glycogen. 
B) glucose to enters cells. 
C) glucose conversion to fat. 
D) HDL production. 
A) liver to release glycogen. 
B) glucose to enters cells. 
C) glucose conversion to fat. 
D) HDL production.

Question 11

Insulin decreases the rate of synthesis of glycogen and fatty acids.

Accepted Answer

A) True 
 B)False

Question 12

In the body, the fermentation process is limited to production of lactate from pyruvate in the muscles.  However, there are other types of fermentation.

Accepted Answer

A) True 
 B)False

Question 13

Control points of the citric acid cycle are shown by the numbers in the following diagram.  Which of the following correctly describes control of the cycle>

Accepted Answer

A) Point 1 is inhibited by NADH and activated by ADP. 
B) Point 2 is inhibited by NADH and activated by ATP. 
C) Point 3 is inhibited by both NADH and ADP. 
D) All of these. 
A) Point 1 is inhibited by NADH and activated by ADP. 
B) Point 2 is inhibited by NADH and activated by ATP. 
C) Point 3 is inhibited by both NADH and ADP. 
D) All of these.

Question 14

The majority of ATP produced during the catabolism of glucose is formed during _____ .

Accepted Answer

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

Question 15

How can a person avoid an "energy crash" one to three hours after a meal?

Accepted Answer

A) Consume foods with elevated levels of caffeine. 
B) Increase the time between eating meals. 
C) Eat meals with a high overall glycemic index. 
D) Eat meals with a low overall glycemic index. 
A) Consume foods with elevated levels of caffeine. 
B) Increase the time between eating meals. 
C) Eat meals with a high overall glycemic index. 
D) Eat meals with a low overall glycemic index.

In the diagram of the citric acid cycle shown, what do the two points indicated by an asterisk have in common?

Glycolysis occurs within the _____ .

Glycolysis

The electron transport chain exists for the purpose of removing excess electrons from the cell.

The following represents overall net equation for the citric acid cycle. acetyl CoA + 3NAD⁺ + FAD + GDP + P_i + 2H₂O ⎠ 2CO₂ + CoA-S-H + 3NADH + 2H⁺ + FADH₂ + GTP

The processes of producing both lactate and ethanol are anaerobic processes.

The citric acid cycle (CAC)is also called the tricarboxylic acid (TCA)cycle and the Krebs cycle.

Glycogen breakdown is increased in muscle tissue by the presence of epinephrine.

Which of the following is an allosteric enzyme which serves as a control point in the citric acid cycle?

Insulin causes

Insulin decreases the rate of synthesis of glycogen and fatty acids.

In the body, the fermentation process is limited to production of lactate from pyruvate in the muscles. However, there are other types of fermentation.

Control points of the citric acid cycle are shown by the numbers in the following diagram. Which of the following correctly describes control of the cycle>

The majority of ATP produced during the catabolism of glucose is formed during _____ .

How can a person avoid an "energy crash" one to three hours after a meal?

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Exam 23: Carbohydrate Metabolism

In the diagram of the citric acid cycle shown, what do the two points indicated by an asterisk have in common?

Glycolysis occurs within the _____ .

Glycolysis

The electron transport chain exists for the purpose of removing excess electrons from the cell.

The following represents overall net equation for the citric acid cycle. acetyl CoA + 3NAD+ + FAD + GDP + Pi + 2H2O ⎠ 2CO2 + CoA-S-H + 3NADH + 2H+ + FADH2 + GTP

The processes of producing both lactate and ethanol are anaerobic processes.

The citric acid cycle (CAC)is also called the tricarboxylic acid (TCA)cycle and the Krebs cycle.

Glycogen breakdown is increased in muscle tissue by the presence of epinephrine.

Which of the following is an allosteric enzyme which serves as a control point in the citric acid cycle?

Insulin causes

Insulin decreases the rate of synthesis of glycogen and fatty acids.

In the body, the fermentation process is limited to production of lactate from pyruvate in the muscles. However, there are other types of fermentation.

Control points of the citric acid cycle are shown by the numbers in the following diagram. Which of the following correctly describes control of the cycle>

The majority of ATP produced during the catabolism of glucose is formed during _____ .

How can a person avoid an "energy crash" one to three hours after a meal?

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Lipid and Amino Acid Metabolism

Body Fluids

Filters

The following represents overall net equation for the citric acid cycle. acetyl CoA + 3NAD⁺ + FAD + GDP + P_i + 2H₂O ⎠ 2CO₂ + CoA-S-H + 3NADH + 2H⁺ + FADH₂ + GTP