Question 1

The process of building up new molecules in the cell is called

Accepted Answer

A)  metabolism. 
B)  catabolism. 
C)  anabolism. 
D)  glycolysis. 
E)  transamination. 
A)  metabolism. 
B)  catabolism. 
C)  anabolism. 
D)  glycolysis. 
E)  transamination.

Question 2

The energy for most energy-requiring reactions in the cells of the body is obtained by the hydrolysis of __________.

Accepted Answer

A)  ATP 
B)  ADP 
C)  AMP 
D)  cyclic AMP 
E)  GTP 
A)  ATP 
B)  ADP 
C)  AMP 
D)  cyclic AMP 
E)  GTP

Question 3

Coenzyme A is a molecule whose function is to

Accepted Answer

A)  activate enzyme A. 
B)  undergo phosphorylation. 
C)  provide energy for the citric acid cycle. 
D)  produce acyl groups for reaction. 
E)  help break down macromolecules. 
A)  activate enzyme A. 
B)  undergo phosphorylation. 
C)  provide energy for the citric acid cycle. 
D)  produce acyl groups for reaction. 
E)  help break down macromolecules.

Question 4

The portion of Coenzyme A that reacts with potential substrates is

Accepted Answer

A)  an acid group. 
B)  an amino group. 
C)  a C=O group. 
D)  an alcohol group. 
E)  a thiol group. 
A)  an acid group. 
B)  an amino group. 
C)  a C=O group. 
D)  an alcohol group. 
E)  a thiol group.

Question 5

Identify each of the following metabolic pathways.
-digestion

Accepted Answer

A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism 
A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism

Question 6

Which of the following does not require energy from ATP hydrolysis?

Accepted Answer

A)  digestion 
B)  muscle contraction 
C)  transport across cell membranes 
D)  sending nerve signals 
E)  synthesis of an enzyme 
A)  digestion 
B)  muscle contraction 
C)  transport across cell membranes 
D)  sending nerve signals 
E)  synthesis of an enzyme

Question 7

In biochemical systems, the term reduction often refers to

Accepted Answer

A)  a loss of hydrogen or electrons by a compound. 
B)  a gain of hydrogen or electrons by a compound. 
C)  a gain in oxygen. 
D)  a loss of electrons. 
E)  an energy-releasing reaction. 
A)  a loss of hydrogen or electrons by a compound. 
B)  a gain of hydrogen or electrons by a compound. 
C)  a gain in oxygen. 
D)  a loss of electrons. 
E)  an energy-releasing reaction.

Question 8

The net energy production in anaerobic glycolysis is __________.

Accepted Answer

A)  2 ATP 
B)  4 ATP 
C)  6 ATP 
D)  8 ATP 
E)  12 ATP 
A)  2 ATP 
B)  4 ATP 
C)  6 ATP 
D)  8 ATP 
E)  12 ATP

Question 9

Hydrolysis of sucrose takes place primarily in the __________.

Accepted Answer

A)  mouth 
B)  stomach 
C)  pancreas 
D)  small intestine 
E)  large intestine 
A)  mouth 
B)  stomach 
C)  pancreas 
D)  small intestine 
E)  large intestine

Question 10

Digestion of carbohydrates begins in the

Accepted Answer

A)  mouth. 
B)  stomach. 
C)  pancreas. 
D)  small intestine. 
E)  large intestine. 
A)  mouth. 
B)  stomach. 
C)  pancreas. 
D)  small intestine. 
E)  large intestine.

Question 11

Identify each of the following metabolic pathways.
-triacylglycerol hydrolysis

Accepted Answer

A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism 
A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism

Question 12

The components of ATP are

Accepted Answer

A)  adenosine, ribose, and triphosphate. 
B)  aniline and triphosphate. 
C)  alanine, ribose, and triphosphate. 
D)  adenine, ribose, and triphosphate. 
E)  adenosine, deoxyribose, and triphosphate. 
A)  adenosine, ribose, and triphosphate. 
B)  aniline and triphosphate. 
C)  alanine, ribose, and triphosphate. 
D)  adenine, ribose, and triphosphate. 
E)  adenosine, deoxyribose, and triphosphate.

Question 13

A compound that is formed in a metabolic oxidation is called a(n)

Accepted Answer

A)  product. 
B)  enzyme. 
C)  metabolite. 
D)  food. 
E)  cofactor. 
A)  product. 
B)  enzyme. 
C)  metabolite. 
D)  food. 
E)  cofactor.

Question 14

Oxidation involves the gain of electrons for a substance.

Accepted Answer

A) True 
 B)False

Question 15

Identify each of the following metabolic pathways.
-the Cori cycle

Accepted Answer

A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism 
A) the production of glucose from noncarbohydrate molecules 
B) the flow of lactate and glucose between muscle and liver 
C) the synthesis of glycogen from glucose for storage purposes 
D) breaking down of macromolecules 
E) the conversion of glucose to lactic acid
F)the conversion of pyruviate to ethanol and CO₂
G)lipid metabolism

Question 16

The hydrolysis of ATP to ADP is

Accepted Answer

A)  endothermic. 
B)  exothermic. 
C)  isothermic. 
D)  an oxidation. 
E)  a reduction. 
A)  endothermic. 
B)  exothermic. 
C)  isothermic. 
D)  an oxidation. 
E)  a reduction.

Question 17

Digestion of carbohydrates begins in the mouth.

Accepted Answer

A) True 
 B)False

Question 18

FAD is a coenzyme which usually participates in

Accepted Answer

A)  oxidation of alcohols to aldehydes. 
B)  formation of carbon-carbon double bonds. 
C)  decarboxylation reactions. 
D)  phosphorylation reactions. 
E)  β-oxidation reactions. 
A)  oxidation of alcohols to aldehydes. 
B)  formation of carbon-carbon double bonds. 
C)  decarboxylation reactions. 
D)  phosphorylation reactions. 
E)  β-oxidation reactions.

Question 19

Overall, catabolic reactions

Accepted Answer

A)  release energy. 
B)  take in energy. 
C)  occur mainly in the liver. 
D)  occur outside the cell membrane. 
E)  take place in the nucleus of the cell. 
A)  release energy. 
B)  take in energy. 
C)  occur mainly in the liver. 
D)  occur outside the cell membrane. 
E)  take place in the nucleus of the cell.

Question 20

The final products of catabolic reactions are

Accepted Answer

A)  carbon dioxide, water, and ammonia. 
B)  glucose, lipids, and glycogen. 
C)  lipids, oxygen, and water. 
D)  RNA and DNA. 
E)  lipids and carbohydrates. 
A)  carbon dioxide, water, and ammonia. 
B)  glucose, lipids, and glycogen. 
C)  lipids, oxygen, and water. 
D)  RNA and DNA. 
E)  lipids and carbohydrates.

Exam 22: Metabolic Pathways for Carbohydrates

The process of building up new molecules in the cell is called

The energy for most energy-requiring reactions in the cells of the body is obtained by the hydrolysis of __________.

Coenzyme A is a molecule whose function is to

The portion of Coenzyme A that reacts with potential substrates is

Identify each of the following metabolic pathways. -digestion

Which of the following does not require energy from ATP hydrolysis?

In biochemical systems, the term reduction often refers to

The net energy production in anaerobic glycolysis is __________.

Hydrolysis of sucrose takes place primarily in the __________.

Digestion of carbohydrates begins in the

Identify each of the following metabolic pathways. -triacylglycerol hydrolysis

The components of ATP are

A compound that is formed in a metabolic oxidation is called a(n)

Oxidation involves the gain of electrons for a substance.

Identify each of the following metabolic pathways. -the Cori cycle

The hydrolysis of ATP to ADP is

Digestion of carbohydrates begins in the mouth.

FAD is a coenzyme which usually participates in

Overall, catabolic reactions

The final products of catabolic reactions are

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

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