Question 1

The process of glycolysis is regulated by

Accepted Answer

A) cell requirements for pyruvate. 
B) allosteric control. 
C) ATP needs. 
D) feedback inhibition. 
E) All of the above. 
A) cell requirements for pyruvate. 
B) allosteric control. 
C) ATP needs. 
D) feedback inhibition. 
E) All of the above.

Question 2

When one glucose molecule undergoes glycolysis it generates

Accepted Answer

A) 6 ATP. 
B) 6 ATP and 2 NADH. 
C) 2 ATP and 2 NADH. 
D) 2 ATP and 4 NADH. 
E) 12 ATP. 
A) 6 ATP. 
B) 6 ATP and 2 NADH. 
C) 2 ATP and 2 NADH. 
D) 2 ATP and 4 NADH. 
E) 12 ATP.

Question 3

The conversion of ATP to ADP and inorganic phosphate produces 7.3 kcal/mole of energy.

Accepted Answer

A) True 
 B)False

Question 4

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 5

Muscle contraction requires

Accepted Answer

A) copper ion and ATP. 
B) iron. 
C) calcium ion and ATP. 
D) lipid hydrolysis. 
E) carbon dioxide. 
A) copper ion and ATP. 
B) iron. 
C) calcium ion and ATP. 
D) lipid hydrolysis. 
E) carbon dioxide.

Question 6

Anabolic reactions are reactions that

Accepted Answer

A) use oxidation but not reduction. 
B) break down large molecules into smaller ones. 
C) take place in the mitochondria. 
D) use energy. 
E) give off energy. 
A) use oxidation but not reduction. 
B) break down large molecules into smaller ones. 
C) take place in the mitochondria. 
D) use energy. 
E) give off energy.

Question 7

When glucose is made from noncarbohydrate sources, the process is called

Accepted Answer

A) glycogenesis. 
B) glycogenolysis. 
C) gluconeogenesis. 
D) lactate production. 
E) glucagon production. 
A) glycogenesis. 
B) glycogenolysis. 
C) gluconeogenesis. 
D) lactate production. 
E) glucagon production.

Question 8

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 9

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 10

NAD+ participates in reactions that produce

Accepted Answer

A) a CH2 group. 
B) a C=O bond. 
C) phosphorylation. 
D) ADP from ATP. 
E) a C-C bond. 
A) a CH2 group. 
B) a C=O bond. 
C) phosphorylation. 
D) ADP from ATP. 
E) a C-C bond.

Question 11

Reactions in the mitochondria produce most of the cell's energy.

Accepted Answer

A) True 
 B)False

Question 12

The compounds formed when fructose-1, 6-diphosphate is split are

Accepted Answer

A) pyruvic acid and lactic acid. 
B) ethanol and acetyl CoA. 
C) dihydroxyacetone phosphate and pyruvic acid. 
D) dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. 
E) glyceraldehyde 3-phosphate and pyruvic acid. 
A) pyruvic acid and lactic acid. 
B) ethanol and acetyl CoA. 
C) dihydroxyacetone phosphate and pyruvic acid. 
D) dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. 
E) glyceraldehyde 3-phosphate and pyruvic acid.

Question 13

In glycogenesis, excess glucose is used to form glycogen.

Accepted Answer

A) True 
 B)False

Question 14

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 15

Lysosomes digest and recycle old cell structures.

Accepted Answer

A) True 
 B)False

Question 16

The hydrolysis of ADP to give AMP and Pi, releases approximately the same amount of energy as

Accepted Answer

A) sucrose breakdown. 
B) protein digestion. 
C) glucose oxidation. 
D) glycogen production. 
E) ATP → ADP + Pi. 
A) sucrose breakdown. 
B) protein digestion. 
C) glucose oxidation. 
D) glycogen production. 
E) ATP → ADP + Pi.

Question 17

The middle stage of catabolism is the point at which

Accepted Answer

A) acetyl CoA is produced. 
B) monomers are produced from macromolecules. 
C) macromolecules are made from monomers. 
D) glycogen is converted to glucose. 
E) excess nutrients are stored as fats. 
A) acetyl CoA is produced. 
B) monomers are produced from macromolecules. 
C) macromolecules are made from monomers. 
D) glycogen is converted to glucose. 
E) excess nutrients are stored as fats.

Question 18

Gluconeogenesis is an anabolic process.

Accepted Answer

A) True 
 B)False

Question 19

The first stage of catabolism is

Accepted Answer

A) the citric acid cycle. 
B) production of pyruvate. 
C) production of acetyl CoA. 
D) buildup of macromolecules from monomers. 
E) digestion of large molecules. 
A) the citric acid cycle. 
B) production of pyruvate. 
C) production of acetyl CoA. 
D) buildup of macromolecules from monomers. 
E) digestion of large molecules.

Question 20

When as much glycogen is stored as possible in the body, excess glucose is converted to

Accepted Answer

A) triacylglycerols. 
B) fructose. 
C) sucrose. 
D) Coenzyme A. 
E) ATP. 
A) triacylglycerols. 
B) fructose. 
C) sucrose. 
D) Coenzyme A. 
E) ATP.

Exam 22: Metabolic Pathways for Carbohydrates

The process of glycolysis is regulated by

When one glucose molecule undergoes glycolysis it generates

The conversion of ATP to ADP and inorganic phosphate produces 7.3 kcal/mole of energy.

Digestion of carbohydrates begins in the

Muscle contraction requires

Anabolic reactions are reactions that

When glucose is made from noncarbohydrate sources, the process is called

The portion of Coenzyme A that reacts with potential substrates is

FAD is a coenzyme which usually participates in

NAD+ participates in reactions that produce

Reactions in the mitochondria produce most of the cell's energy.

The compounds formed when fructose-1, 6-diphosphate is split are

In glycogenesis, excess glucose is used to form glycogen.

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

Lysosomes digest and recycle old cell structures.

The hydrolysis of ADP to give AMP and Pi, releases approximately the same amount of energy as

The middle stage of catabolism is the point at which

Gluconeogenesis is an anabolic process.

The first stage of catabolism is

When as much glycogen is stored as possible in the body, excess glucose is converted to

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NAD⁺ participates in reactions that produce