Question 1

The formation of β-hydroxybutyrate from acetoacetate is an example of which of the following type of reaction?

Accepted Answer

A)   decarboxylation
B)   hydrolysis
C)   reduction
D)   oxidationE) A) and B)
F) A) and C)

Question 2

Which of the following is(are)  consumed in the process of converting glycerol to dihydroxyacetone phosphate?

Accepted Answer

A)   ATP
B)   NAD+
C)   both a and b
D)   neither a nor bE) None of the above
F) A) and B)

Question 3

Which of the following describes the relationship between glucose 6-phosphate and fructose 6-phosphate?

Accepted Answer

A)   They are anomers.
B)   They are enantiomers.
C)   They are isomers.
D)   There is no special relationship between them.E) B) and D)
F) All of the above

Question 4

Which of the following enzymes is associated with the removal of a C2 fragment from the fatty acid?

Accepted Answer

A)   acyl CoA dehydrogenase
B)   carnitine
C)   hydroxyacyldehydrogenase
D)   thiolaseE) A) and D)
F) None of the above

Question 5

When one molecule of glucose undergoes glycolysis, two molecules of pyruvate are produced; the pyruvates then undergoes oxidative decarboxylation to yield two acetyl CoA. How many net molecules of ATP are produced by the oxidative decarboxylation of two molecules of pyruvate to yield two acetyl CoA?

Accepted Answer

A)   2
B)   4
C)   6
D)   12E) C) and D)
F) B) and D)

Question 6

Phosphofructokinase is involved in the conversion of fructose 6-phosphate to which of the following?

Accepted Answer

A)   fructose 1-phosphate
B)   fructose 1,6-bisphosphate
C)   glucose 1,6-bisphosphate
D)   none of theseE) A) and D)
F) A) and C)

Question 7

Consider the following reaction sequence. 
-Which of the following is true of pathways by which energy is extracted from carbohydrates and glycerol?

Accepted Answer

A)   They are both glycolysis pathways, but are different from one another.
B)   They are the same as one another.
C)   The pathway for carbohydrates does not involve glycolysis, but that for glycerol does.
D)   The pathway for glycerol does not involve glycolysis, but that for carbohydrates does.E) A) and C)
F) A) and B)

Question 8

Which enzyme is involved in the conversion of phosphoenolpyruvate to pyruvate?

Accepted Answer

A)   enolase
B)   ketolase
C)   pyruvate kinase
D)   pyruvate oxidaseE) C) and D)
F) B) and C)

Question 9

α-Ketoglutarate is involved in both transamination and oxidative deamination. Which of the following describes its involvement in these two processes?

Accepted Answer

A)   It is a product of both transamination and oxidative deamination.
B)   It is a reactant in both transamination and oxidative deamination.
C)   It is a reactant in oxidative deamination and a product in transamination.
D)   It is a reactant in transamination and a product in oxidative deamination.E) A) and B)
F) None of the above

Question 10

The formation of acetone from acetoacetate is an example of which of the following type of reaction?

Accepted Answer

A)   decarboxylation
B)   hydrolysis
C)   reduction
D)   oxidationE) A) and B)
F) B) and D)

Question 11

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are produced for each NADH + H+?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and C)
F) A) and B)

Question 12

Which of the following describes the relationship between dihydroxyacetone phosphate and glyceraldehyde 3-phosphate?

Accepted Answer

A)   They are anomers.
B)   They are enantiomers.
C)   They are isomers.
D)   There is no special relationship between them.E) A) and B)
F) A) and C)

Question 13

The color changes associated with bruises are associated with which type of chemical reaction?

Accepted Answer

A)   deamination
B)   phosphorylation
C)   redox
D)   transaminationE) C) and D)
F) A) and B)

Question 14

Which of the following amino acids is ketogenic but not glucogenic?

Accepted Answer

A)   alanine
B)   leucine
C)   serine
D)   tyrosineE) A) and D)
F) A) and C)

Question 15

The conversion of ribose to deoxyribose is an example of which of the following?

Accepted Answer

A)   dehydration
B)   oxidation
C)   reduction
D)   tautomerizationE) C) and D)
F) A) and B)

Question 16

The accumulation of ketone bodies in the blood results in which of the following?

Accepted Answer

A)   a decrease in [Na+] in the interstitial fluids
B)   an increase in the pH of the blood
C)   both a and b
D)   neither a nor bE) None of the above
F) B) and C)

Question 17

Which of the following is the cause of muscle cramps associated with strenuous exercise?

Accepted Answer

A)   acetate
B)   citrate
C)   lactate
D)   pyruvateE) B) and D)
F) C) and D)

Question 18

Phenylketonuria, PKU, is associated with which of the following?

Accepted Answer

A)   the accumulation of phenylalanine
B)   the conversion of phenylalanine to phenylpyruvate
C)   the conversion of phenylalanine to tyrosine
D)   none of the aboveE) A) and D)
F) A) and C)

Question 19

The accumulation of ketone bodies in the blood results in which of the following?

Accepted Answer

A)   a decrease in the pH of the blood
B)   no effect on the pH of the blood
C)   an increase in the pH of the blood
D)   an increase in [Na+] in the interstitial fluidsE) B) and D)
F) A) and C)

Question 20

Consider the following reaction sequence. 
-Which of the following products result from the action of lipases on lipids?

Accepted Answer

A)   fatty acids
B)   glycerol
C)   monoglycerides
D)   all of theseE) A) and B)
F) None of the above

Exam 28: Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

The color changes associated with bruises are associated with which type of chemical reaction?

Correct AnswerverifiedShow Answer

Consider the following reaction sequence. -Which of the following products result from the action of lipases on lipids?

Correct AnswerverifiedShow Answer

The formation of acetone from acetoacetate is an example of which of the following type of reaction?

Correct AnswerverifiedShow Answer

Phosphofructokinase is involved in the conversion of fructose 6-phosphate to which of the following?

Correct AnswerverifiedShow Answer

Which of the following describes the relationship between glucose 6-phosphate and fructose 6-phosphate?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Consider the following reaction sequence. -Which of the following is true of pathways by which energy is extracted from carbohydrates and glycerol?

Correct AnswerverifiedShow Answer

Which enzyme is involved in the conversion of phosphoenolpyruvate to pyruvate?

Correct AnswerverifiedShow Answer

The conversion of ribose to deoxyribose is an example of which of the following?

Correct AnswerverifiedShow Answer

Which of the following is the cause of muscle cramps associated with strenuous exercise?

Correct AnswerverifiedShow Answer

Phenylketonuria, PKU, is associated with which of the following?

Correct AnswerverifiedShow Answer

The accumulation of ketone bodies in the blood results in which of the following?

Correct AnswerverifiedShow Answer

The accumulation of ketone bodies in the blood results in which of the following?

Correct AnswerverifiedShow Answer

Which of the following describes the relationship between dihydroxyacetone phosphate and glyceraldehyde 3-phosphate?

Correct AnswerverifiedShow Answer

α-Ketoglutarate is involved in both transamination and oxidative deamination. Which of the following describes its involvement in these two processes?

Correct AnswerverifiedShow Answer

Which of the following amino acids is ketogenic but not glucogenic?

Correct AnswerverifiedShow Answer

The formation of β-hydroxybutyrate from acetoacetate is an example of which of the following type of reaction?

Correct AnswerverifiedShow Answer

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are produced for each NADH + H+?

Correct AnswerverifiedShow Answer

Which of the following is(are) consumed in the process of converting glycerol to dihydroxyacetone phosphate?

Correct AnswerverifiedShow Answer

Which of the following enzymes is associated with the removal of a C2 fragment from the fatty acid?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are produced for each NADH + H⁺?

Correct Answer
verified

Correct Answer
verified

Which of the following enzymes is associated with the removal of a C₂ fragment from the fatty acid?

Correct Answer
verified