Question 1

The free energy change for the complete oxidation of one mole of glucose is -686 kcal and  Δ\DeltaΔ G°' for the hydrolysis of ATP is -7.3 kcal/mol.How many moles of ATP could be synthesized if the entire oxidation process were 100% efficient in converting this energy to the production of ATP?

Accepted Answer

A)   0.0106 mol ATP
B)   94.0 mol ATP
C)   5.01 * 103 mol ATP
D)   32.0 mol ATP E) B) and C)
F) A) and B)

Question 2

Which of the following reactions represents a step in the metabolism of pyruvate that occurs under aerobic conditions?

Accepted Answer

A)  
B)  
C)  
D)  E) B) and C)
F) A) and D)

Question 3

A blood sugar level that is lower than normal is referred to as _____ .

Accepted Answer

A)   hypoglycemia
B)   hyperglycemia
C)   glucosuria
D)   diabetes mellitusE) C) and D)
F) None of the above A

Question 4

Lactate,produced in the muscles,is sent to the liver for processing.This is one step of ____.

Accepted Answer

A)   the citric acid cycle
B)   the Cori cycle
C)   glycolysis
D)   oxidative phosphorylationE) A) and B)
F) B) and C)

Question 5

Glycolysis occurs within the _____ .

Accepted Answer

A)   mitochondria
B)   nucleus
C)   vacuoles
D)   cytoplasmE) A) and C)
F) B) and C)

Question 6

A key organ in regulating blood glucose levels is the _____ .

Accepted Answer

A)   heart
B)   liver
C)   adrenal cortex
D)   thyroidE) C) and D)
F) A) and B)

Question 7

Which of the following hormones acts to raise the blood glucose level?

Accepted Answer

A)   glucagon
B)   insulin
C)   epinephrine
D)   More than one response is correct.E) A) and B)
F) A) and C)

Question 8

The first step in the processes of glycolysis is a phosphorolation.

Accepted Answer

A) True 
 B)False

Question 9

The catabolism of one molecule of glucose in the muscle cells produces 32 ATP molecules.

Accepted Answer

A) True 
 B)False  False

Question 10

Under anaerobic conditions in humans,what is pyruvate converted to?

Accepted Answer

A)   ethanol
B)   lactate
C)   CO2
D)   none of theseE) None of the above
F) A) and B)

Question 11

The high-energy compound involved in the conversion of glucose to glycogen is _____ .

Accepted Answer

A)   GTP
B)   ATP
C)   ADP
D)   UTPE) B) and C)
F) C) and D)

Question 12

Under aerobic conditions in humans,what is pyruvate converted to?

Accepted Answer

A)   ethanol
B)   lactate
C)   CO2
D)   none of theseE) None of the above
F) B) and D)

Question 13

Which of the following foods is most likely to cause problems to those individuals that are lactose intolerant?

Accepted Answer

A)   Swiss cheese
B)   skim milk
C)   cheddar cheese
D)   margarineE) None of the above
F) A) and B)

Question 14

Epinephrine stimulates glycolysis.

Accepted Answer

A) True 
 B)False  True

Question 15

What is the final acceptor of electrons during electron transport?

Accepted Answer

A)   NAD+
B)   NADH
C)   FAD
D)   O2E) All of the above
F) C) and D)

Question 16

Synthesis of glucose from pyruvate during the Cori cycle occurs primarily in the _____ .

Accepted Answer

A)   muscles
B)   liver
C)   bloodstream
D)   heart tissueE) B) and C)
F) None of the above

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Consider the figure below.What process is depicted?

Accepted Answer

A)   Cori cycle
B)   glycolysis
C)   fermentation
D)   glucogenolysisE) All of the above
F) A) and B)

Question 19

Under aerobic conditions in the body,pyruvate is converted to _____ .

Accepted Answer

A)   lactate
B)   acetyl CoA
C)   ethanol
D)   acetaldehydeE) B) and D)
F) B) and C)

Question 20

How many molecules of CO2 are produced per molecule of glucose as a result of the pyruvate dehydrogenase complex?

Accepted Answer

A)   0
B)   1
C)   2
D)   3E) None of the above
F) C) and D)

Exam 23: Carbohydrate Metabolism

The free energy change for the complete oxidation of one mole of glucose is -686 kcal and Δ\DeltaΔ G°' for the hydrolysis of ATP is -7.3 kcal/mol.How many moles of ATP could be synthesized if the entire oxidation process were 100% efficient in converting this energy to the production of ATP?

Correct AnswerverifiedShow Answer

Which of the following reactions represents a step in the metabolism of pyruvate that occurs under aerobic conditions?

Correct AnswerverifiedShow Answer

A blood sugar level that is lower than normal is referred to as _____ .

Correct AnswerverifiedA

Lactate,produced in the muscles,is sent to the liver for processing.This is one step of ____.

Correct AnswerverifiedShow Answer

Glycolysis occurs within the _____ .

Correct AnswerverifiedShow Answer

A key organ in regulating blood glucose levels is the _____ .

Correct AnswerverifiedShow Answer

Which of the following hormones acts to raise the blood glucose level?

Correct AnswerverifiedShow Answer

The first step in the processes of glycolysis is a phosphorolation.

Correct AnswerverifiedShow Answer

The catabolism of one molecule of glucose in the muscle cells produces 32 ATP molecules.

Correct AnswerverifiedFalse

Under anaerobic conditions in humans,what is pyruvate converted to?

Correct AnswerverifiedShow Answer

The high-energy compound involved in the conversion of glucose to glycogen is _____ .

Correct AnswerverifiedShow Answer

Under aerobic conditions in humans,what is pyruvate converted to?

Correct AnswerverifiedShow Answer

Which of the following foods is most likely to cause problems to those individuals that are lactose intolerant?

Correct AnswerverifiedShow Answer

Epinephrine stimulates glycolysis.

Correct AnswerverifiedTrue

What is the final acceptor of electrons during electron transport?

Correct AnswerverifiedShow Answer

Synthesis of glucose from pyruvate during the Cori cycle occurs primarily in the _____ .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Consider the figure below.What process is depicted?

Correct AnswerverifiedShow Answer

Under aerobic conditions in the body,pyruvate is converted to _____ .

Correct AnswerverifiedShow Answer

How many molecules of CO2 are produced per molecule of glucose as a result of the pyruvate dehydrogenase complex?

Correct AnswerverifiedShow Answer

The free energy change for the complete oxidation of one mole of glucose is -686 kcal and $\Delta$ G°' for the hydrolysis of ATP is -7.3 kcal/mol.How many moles of ATP could be synthesized if the entire oxidation process were 100% efficient in converting this energy to the production of ATP?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
False

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many molecules of CO₂ are produced per molecule of glucose as a result of the pyruvate dehydrogenase complex?

Correct Answer
verified