Question 1

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

Accepted Answer

A) True 
 B)False  False

Question 2

Epinephrine stimulates glycolysis.

Accepted Answer

A) True 
 B)False  True

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 mellitus 
A)  hypoglycemia 
B)  hyperglycemia 
C)  glucosuria 
D)  diabetes mellitus A

Question 4

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

Accepted Answer

A)  ethanol 
B)  lactate 
C)  CO2 
D)  none of these 
A)  ethanol 
B)  lactate 
C)  CO2 
D)  none of these

Question 5

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

Accepted Answer

A)  lactate 
B)  acetyl CoA 
C)  ethanol 
D)  acetaldehyde 
A)  lactate 
B)  acetyl CoA 
C)  ethanol 
D)  acetaldehyde

Question 6

Consider the figure below.What process is depicted?

Accepted Answer

A)  Cori cycle 
B)  glycolysis 
C)  fermentation 
D)  glucogenolysis 
A)  Cori cycle 
B)  glycolysis 
C)  fermentation 
D)  glucogenolysis

Question 7

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

Accepted Answer

A)  ethanol 
B)  lactate 
C)  CO2 
D)  none of these 
A)  ethanol 
B)  lactate 
C)  CO2 
D)  none of these

Question 8

What is the final acceptor of electrons during electron transport?

Accepted Answer

A)  NAD+ 
B)  NADH 
C)  FAD 
D)  O2 
A)  NAD+ 
B)  NADH 
C)  FAD 
D)  O2

Question 9

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

Accepted Answer

A)  heart 
B)  liver 
C)  adrenal cortex 
D)  thyroid 
A)  heart 
B)  liver 
C)  adrenal cortex 
D)  thyroid

Question 10

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

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 11

Glycolysis occurs within the _____ .

Accepted Answer

A)  mitochondria 
B)  nucleus 
C)  vacuoles 
D)  cytoplasm 
A)  mitochondria 
B)  nucleus 
C)  vacuoles 
D)  cytoplasm

Question 12

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)  3 
A)  0 
B)  1 
C)  2 
D)  3

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)  margarine 
A)  Swiss cheese 
B)  skim milk 
C)  cheddar cheese 
D)  margarine

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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

Question 16

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?

Accepted Answer

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

Question 17

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

Accepted Answer

A)  muscles 
B)  liver 
C)  bloodstream 
D)  heart tissue 
A)  muscles 
B)  liver 
C)  bloodstream 
D)  heart tissue

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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 phosphorylation 
A)  the citric acid cycle 
B)  the Cori cycle 
C)  glycolysis 
D)  oxidative phosphorylation

Question 20

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

Accepted Answer

A)  GTP 
B)  ATP 
C)  ADP 
D)  UTP 
A)  GTP 
B)  ATP 
C)  ADP 
D)  UTP

Exam 23: Carbohydrate Metabolism

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

Epinephrine stimulates glycolysis.

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

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

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

Consider the figure below.What process is depicted?

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

What is the final acceptor of electrons during electron transport?

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

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

Glycolysis occurs within the _____ .

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

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

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

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

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?

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

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

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

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

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Lipid and Amino Acid Metabolism

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

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?