Question 1

Oxygen is needed to oxidize NADH to NAD+.

Accepted Answer

A) True 
 B)False

Question 2

Which is not one of the three major products formed in glycolysis?

Accepted Answer

A) glucose 
B) ATP 
C) NADH 
D) pyruvate 
A) glucose 
B) ATP 
C) NADH 
D) pyruvate

Question 3

An abnormally high concentration of ketone bodies can lead to ketoacidosis-that is, an increase in the blood pH caused by the increased level of $\beta$-hydroxybutyrate and acetoacetate.

Accepted Answer

A) True 
 B)False

Question 4

How much ATP results from the transformation of one glucose molecule to two (2)molecules of acetyl CoA?

Accepted Answer

A) 2 ATP molecules 
B) 5 ATP molecules 
C) 12 ATP molecules 
D) 20 ATP molecules 
E) 32 ATP molecules 
A) 2 ATP molecules 
B) 5 ATP molecules 
C) 12 ATP molecules 
D) 20 ATP molecules 
E) 32 ATP molecules

Question 5

Low carbohydrate diets such as the Atkins diet induce the catabolism of stored fat for energy production to assist in weight loss.

Accepted Answer

A) True 
 B)False

Question 6

Step [1] of the $\beta$-oxidation of a fatty acid is considered an oxidation reaction even though the product has no additional C-O bonds.

Accepted Answer

A) True 
 B)False

Question 7

How many cycles of $\beta$-oxidation are needed for complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)18CO2H?

Accepted Answer

A) 1 
B) 9 
C) 10 
D) 18 
E) 20 
A) 1 
B) 9 
C) 10 
D) 18 
E) 20

Question 8

What metabolic intermediate is formed from the carbon skeleton of the amino acid valine?

Accepted Answer

A) $\alpha$-ketoglutarate 
B) oxaloacetate 
C) citrate 
D) succinyl CoA 
E) fumarate 
A) $\alpha$-ketoglutarate 
B) oxaloacetate 
C) citrate 
D) succinyl CoA 
E) fumarate

Question 9

Glycolysis converts _____

Accepted Answer

A) polysaccharides to glucose. 
B) glucose to pyruvate, which is then metabolized to acetyl CoA. 
C) fatty acids to thioesters, which are then metabolized to acetyl CoA. 
D) amino acids to urea. 
A) polysaccharides to glucose. 
B) glucose to pyruvate, which is then metabolized to acetyl CoA. 
C) fatty acids to thioesters, which are then metabolized to acetyl CoA. 
D) amino acids to urea.

Question 10

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

Accepted Answer

A) 32 
B) 98 
C) 140 
D) 148 
E) 150 
A) 32 
B) 98 
C) 140 
D) 148 
E) 150

Question 11

Which quantities need to be considered in determining the ATP yield from the complete catabolism of a fatty acid?

Accepted Answer

A) the ATP used up in the synthesis of the acyl CoA 
B) the ATP generated from coenzymes produced during $\beta$-oxidation 
C) the ATP that results from the catabolism of each acetyl CoA 
D) All of the quantities above need to be considered. 
A) the ATP used up in the synthesis of the acyl CoA 
B) the ATP generated from coenzymes produced during $\beta$-oxidation 
C) the ATP that results from the catabolism of each acetyl CoA 
D) All of the quantities above need to be considered.

Question 12

The $\beta$-oxidation of a fatty acid may be described as which type of metabolic pathway?

Accepted Answer

A) an anabolic pathway 
B) a cyclic pathway 
C) a spiral pathway 
D) a linear pathway 
A) an anabolic pathway 
B) a cyclic pathway 
C) a spiral pathway 
D) a linear pathway

Question 13

How many molecules of coenzyme A are needed for complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)18CO2H?

Accepted Answer

A) 1 
B) 9 
C) 10 
D) 18 
E) 20 
A) 1 
B) 9 
C) 10 
D) 18 
E) 20

Question 14

What product(s)is formed in a transamination reaction?

Accepted Answer

A) an amino acid 
B) urea 
C) ammonia 
D) an $\alpha$-keto acid 
E) an amino acid and an $\alpha$-keto acid are both formed 
A) an amino acid 
B) urea 
C) ammonia 
D) an $\alpha$-keto acid 
E) an amino acid and an $\alpha$-keto acid are both formed

Question 15

In fermentation, the six carbon atoms of glucose are converted to three molecules of ethanol.

Accepted Answer

A) True 
 B)False

Question 16

The products that result when alanine is subjected to transamination followed by oxidative deamination are properly indicated below.

Accepted Answer

A) True 
 B)False

Question 17

The phosphorylation of mannose to form mannose 6-phosphate requires energy from ATP.

Accepted Answer

A) True 
 B)False

Question 18

Which compound is not a ketone body?

Accepted Answer

A) acetoacetate 
B) acetone 
C) $\beta$-hydroxybutyrate 
D) acetyl CoA 
A) acetoacetate 
B) acetone 
C) $\beta$-hydroxybutyrate 
D) acetyl CoA

Question 19

How many molecules of NADH are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

Accepted Answer

A) 1 
B) 10 
C) 11 
D) 20 
E) 22 
A) 1 
B) 10 
C) 11 
D) 20 
E) 22

Question 20

Which amino acid is classified as glucogenic?

Accepted Answer

A) leucine 
B) proline 
C) lysine 
D) None of the amino acids are classified as glucogenic. 
A) leucine 
B) proline 
C) lysine 
D) None of the amino acids are classified as glucogenic.

Exam 24: Carbohydrate, Lipid, and Protein Metabolism

Oxygen is needed to oxidize NADH to NAD+.

Which is not one of the three major products formed in glycolysis?

An abnormally high concentration of ketone bodies can lead to ketoacidosis-that is, an increase in the blood pH caused by the increased level of β\betaβ -hydroxybutyrate and acetoacetate.

How much ATP results from the transformation of one glucose molecule to two (2)molecules of acetyl CoA?

Low carbohydrate diets such as the Atkins diet induce the catabolism of stored fat for energy production to assist in weight loss.

Step [1] of the β\betaβ -oxidation of a fatty acid is considered an oxidation reaction even though the product has no additional C-O bonds.

How many cycles of β\betaβ -oxidation are needed for complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)18CO2H?

What metabolic intermediate is formed from the carbon skeleton of the amino acid valine?

Glycolysis converts _____

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

Which quantities need to be considered in determining the ATP yield from the complete catabolism of a fatty acid?

The β\betaβ -oxidation of a fatty acid may be described as which type of metabolic pathway?

How many molecules of coenzyme A are needed for complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)18CO2H?

What product(s)is formed in a transamination reaction?

In fermentation, the six carbon atoms of glucose are converted to three molecules of ethanol.

The products that result when alanine is subjected to transamination followed by oxidative deamination are properly indicated below.

The phosphorylation of mannose to form mannose 6-phosphate requires energy from ATP.

Which compound is not a ketone body?

How many molecules of NADH are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH3(CH2)20CO2H?

Which amino acid is classified as glucogenic?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Filters

Oxygen is needed to oxidize NADH to NAD⁺.

An abnormally high concentration of ketone bodies can lead to ketoacidosis-that is, an increase in the blood pH caused by the increased level of $\beta$ -hydroxybutyrate and acetoacetate.

Step [1] of the $\beta$ -oxidation of a fatty acid is considered an oxidation reaction even though the product has no additional C-O bonds.

How many cycles of $\beta$ -oxidation are needed for complete catabolism of a saturated fatty acid with the chemical formula CH₃(CH₂)₁₈CO₂H?

How many molecules of ATP are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH₃(CH₂)₂₀CO₂H?

The $\beta$ -oxidation of a fatty acid may be described as which type of metabolic pathway?

How many molecules of coenzyme A are needed for complete catabolism of a saturated fatty acid with the chemical formula CH₃(CH₂)₁₈CO₂H?

How many molecules of NADH are formed during the complete catabolism of a saturated fatty acid with the chemical formula CH₃(CH₂)₂₀CO₂H?