Question 1

-The ion(s)or molecule(s)labeled G is (are)

Accepted Answer

A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H. 
A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H. D

Question 2

An example of nonshivering thermogenesis occurs when epinephrine from the adrenal glands immediately increases the breakdown of glycogen in the

Accepted Answer

A) heart and lungs. 
B) liver and skeletal muscles. 
C) kidneys and pancreas. 
D) skin and accessory glands. 
E) hypothalamus and pons. 
A) heart and lungs. 
B) liver and skeletal muscles. 
C) kidneys and pancreas. 
D) skin and accessory glands. 
E) hypothalamus and pons. B

Question 3

Which of the following is a trace mineral?

Accepted Answer

A) chloride 
B) sodium 
C) calcium 
D) iron 
E) magnesium 
A) chloride 
B) sodium 
C) calcium 
D) iron 
E) magnesium D

Question 4

-The ion(s)or molecule(s)labeled A is (are)

Accepted Answer

A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H. 
A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H.

Question 5

The vitamin that is a coenzyme in amino acid and nucleic acid metabolism is

Accepted Answer

A) vitamin B5 (pantothenic acid). 
B) vitamin B6 (pyridoxine). 
C) vitamin B9 (folic acid). 
D) vitamin C (ascorbic acid). 
E) vitamin K. 
A) vitamin B5 (pantothenic acid). 
B) vitamin B6 (pyridoxine). 
C) vitamin B9 (folic acid). 
D) vitamin C (ascorbic acid). 
E) vitamin K.

Question 6

Lipid catabolism yields 1.3 times as much ATP compared to aerobic glucose metabolism.So why is lipid catabolism not the prime source of ATP in the human body?

Accepted Answer

A) Most people do not have enough lipid reserves. 
B) Water-soluble enzymes cannot easily get to the lipid droplets. 
C) Lipid catabolism occurs in the cytosol where oxygen availability is limited. 
D) Lipid catabolism occurs primarily during times of starvation. 
E) Lipid catabolism produces large amounts of nitrogenous wastes,which are taxing on the liver. 
A) Most people do not have enough lipid reserves. 
B) Water-soluble enzymes cannot easily get to the lipid droplets. 
C) Lipid catabolism occurs in the cytosol where oxygen availability is limited. 
D) Lipid catabolism occurs primarily during times of starvation. 
E) Lipid catabolism produces large amounts of nitrogenous wastes,which are taxing on the liver.

Question 7

Which of the following delivers cholesterol to peripheral tissues?

Accepted Answer

A) triglycerides 
B) low-density lipoproteins 
C) high-density lipoproteins 
D) free fatty acids 
E) glycerol groups 
A) triglycerides 
B) low-density lipoproteins 
C) high-density lipoproteins 
D) free fatty acids 
E) glycerol groups

Question 8

Mucosal deterioration is a sign of hypovitaminosis for vitamins C,B2,and

Accepted Answer

A) B3. 
B) A. 
C) D. 
D) K. 
E) C. 
A) B3. 
B) A. 
C) D. 
D) K. 
E) C.

Question 9

For each molecule of glucose processed,a typical cell gains ________ molecules of ATP.

Accepted Answer

A) 2-3 
B) 6-8 
C) 15-16 
D) 30-32 
E) 60-64 
A) 2-3 
B) 6-8 
C) 15-16 
D) 30-32 
E) 60-64

Question 10

Which fat-soluble vitamin is synthesized in skin that is exposed to sunlight?

Accepted Answer

A) vitamin K 
B) vitamin E 
C) vitamin B6 (pyridoxine) 
D) vitamin D 
E) vitamin C 
A) vitamin K 
B) vitamin E 
C) vitamin B6 (pyridoxine) 
D) vitamin D 
E) vitamin C

Question 11

A patient complains of blurred vision and fatigue.A diagnostic exam reveals that she has been taking megadoses of ________ supplements.

Accepted Answer

A) vitamin K 
B) vitamin E 
C) vitamin C 
D) vitamin A 
E) vitamin D 
A) vitamin K 
B) vitamin E 
C) vitamin C 
D) vitamin A 
E) vitamin D

Question 12

Cyanide poisoning quickly leads to death because it blocks the final cytochrome molecule in the electron transport system.Why is this blockage lethal?

Accepted Answer

A) All hydrogen ion pumps deactivate. 
B) NADH molecules cannot give off their electrons. 
C) FADH2 molecules cannot give off their electrons. 
D) Electrons cannot transfer to oxygen. 
E) Coenzyme Q disassociates and becomes nonfunctional. 
A) All hydrogen ion pumps deactivate. 
B) NADH molecules cannot give off their electrons. 
C) FADH2 molecules cannot give off their electrons. 
D) Electrons cannot transfer to oxygen. 
E) Coenzyme Q disassociates and becomes nonfunctional.

Question 13

The vitamin that is a constituent of coenzyme FAD is

Accepted Answer

A) thiamine (B1). 
B) riboflavin (B2). 
C) niacin (nicotinic acid). 
D) folate (B9). 
E) cobalamin (B12). 
A) thiamine (B1). 
B) riboflavin (B2). 
C) niacin (nicotinic acid). 
D) folate (B9). 
E) cobalamin (B12).

Question 14

Which of the following may not be used for gluconeogenesis because their breakdown produces acetyl CoA?

Accepted Answer

A) fatty acids 
B) complex carbohydrates 
C) glycerol 
D) nucleic acids 
E) glycogen 
A) fatty acids 
B) complex carbohydrates 
C) glycerol 
D) nucleic acids 
E) glycogen

Question 15

The sum of all of the chemical reactions occurring within the human body is called

Accepted Answer

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

Question 16

-The ion(s)or molecule(s)labeled B is (are)

Accepted Answer

A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H. 
A) CO2. 
B) H2O. 
C) O2. 
D) H+. 
E) 2H.

Question 17

Glycerol enters the citric acid cycle after enzymes in the cytosol convert it to

Accepted Answer

A) glucose. 
B) pyruvate. 
C) glycogen. 
D) LDL/HDL. 
E) cholesterol. 
A) glucose. 
B) pyruvate. 
C) glycogen. 
D) LDL/HDL. 
E) cholesterol.

Question 18

During times of increased body temperature,which of the following physiological responses is most likely to occur?

Accepted Answer

A) Vasomotor center is stimulated. 
B) Sweat glands decrease their secretions. 
C) Respiratory centers are inhibited. 
D) Nonshivering thermogenesis is inhibited. 
E) Shivering thermogenesis is stimulated. 
A) Vasomotor center is stimulated. 
B) Sweat glands decrease their secretions. 
C) Respiratory centers are inhibited. 
D) Nonshivering thermogenesis is inhibited. 
E) Shivering thermogenesis is stimulated.

Question 19

About 40% of the energy released through catabolism is used to convert ADP to ATP.What happens to the remaining 60% of energy?

Accepted Answer

A) It is destroyed during the catabolic activities. 
B) It is used to convert RNA to DNA. 
C) It is immediately used in anabolic processes. 
D) It escapes as heat to warm the tissues. 
E) It transforms into mechanical energy. 
A) It is destroyed during the catabolic activities. 
B) It is used to convert RNA to DNA. 
C) It is immediately used in anabolic processes. 
D) It escapes as heat to warm the tissues. 
E) It transforms into mechanical energy.

Question 20

Protein catabolism is an impractical source of quick energy because

Accepted Answer

A) the major byproduct is hydrogen,which cells cannot use for energy. 
B) proteins are unimportant to cellular homeostasis. 
C) the body cannot synthesize any of the amino acids,which it needs. 
D) proteins are catabolized much too easily,resulting in homeostatic imbalance. 
E) proteins are more difficult to catabolize than are complex carbohydrates or lipids. 
A) the major byproduct is hydrogen,which cells cannot use for energy. 
B) proteins are unimportant to cellular homeostasis. 
C) the body cannot synthesize any of the amino acids,which it needs. 
D) proteins are catabolized much too easily,resulting in homeostatic imbalance. 
E) proteins are more difficult to catabolize than are complex carbohydrates or lipids.

-The ion(s)or molecule(s)labeled G is (are)

An example of nonshivering thermogenesis occurs when epinephrine from the adrenal glands immediately increases the breakdown of glycogen in the

Which of the following is a trace mineral?

-The ion(s)or molecule(s)labeled A is (are)

The vitamin that is a coenzyme in amino acid and nucleic acid metabolism is

Lipid catabolism yields 1.3 times as much ATP compared to aerobic glucose metabolism.So why is lipid catabolism not the prime source of ATP in the human body?

Which of the following delivers cholesterol to peripheral tissues?

Mucosal deterioration is a sign of hypovitaminosis for vitamins C,B₂,and

For each molecule of glucose processed,a typical cell gains ________ molecules of ATP.

Which fat-soluble vitamin is synthesized in skin that is exposed to sunlight?

A patient complains of blurred vision and fatigue.A diagnostic exam reveals that she has been taking megadoses of ________ supplements.

Cyanide poisoning quickly leads to death because it blocks the final cytochrome molecule in the electron transport system.Why is this blockage lethal?

The vitamin that is a constituent of coenzyme FAD is

Which of the following may not be used for gluconeogenesis because their breakdown produces acetyl CoA?

The sum of all of the chemical reactions occurring within the human body is called

-The ion(s)or molecule(s)labeled B is (are)

Glycerol enters the citric acid cycle after enzymes in the cytosol convert it to

During times of increased body temperature,which of the following physiological responses is most likely to occur?

About 40% of the energy released through catabolism is used to convert ADP to ATP.What happens to the remaining 60% of energy?

Protein catabolism is an impractical source of quick energy because

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

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Exam 17: Metabolism and Energetics

-The ion(s)or molecule(s)labeled G is (are)

An example of nonshivering thermogenesis occurs when epinephrine from the adrenal glands immediately increases the breakdown of glycogen in the

Which of the following is a trace mineral?

-The ion(s)or molecule(s)labeled A is (are)

The vitamin that is a coenzyme in amino acid and nucleic acid metabolism is

Lipid catabolism yields 1.3 times as much ATP compared to aerobic glucose metabolism.So why is lipid catabolism not the prime source of ATP in the human body?

Which of the following delivers cholesterol to peripheral tissues?

Mucosal deterioration is a sign of hypovitaminosis for vitamins C,B2,and

For each molecule of glucose processed,a typical cell gains ________ molecules of ATP.

Which fat-soluble vitamin is synthesized in skin that is exposed to sunlight?

A patient complains of blurred vision and fatigue.A diagnostic exam reveals that she has been taking megadoses of ________ supplements.

Cyanide poisoning quickly leads to death because it blocks the final cytochrome molecule in the electron transport system.Why is this blockage lethal?

The vitamin that is a constituent of coenzyme FAD is

Which of the following may not be used for gluconeogenesis because their breakdown produces acetyl CoA?

The sum of all of the chemical reactions occurring within the human body is called

-The ion(s)or molecule(s)labeled B is (are)

Glycerol enters the citric acid cycle after enzymes in the cytosol convert it to

During times of increased body temperature,which of the following physiological responses is most likely to occur?

About 40% of the energy released through catabolism is used to convert ADP to ATP.What happens to the remaining 60% of energy?

Protein catabolism is an impractical source of quick energy because

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

The Urinary System

The Reproductive System

Development and Inheritance

Filters

Mucosal deterioration is a sign of hypovitaminosis for vitamins C,B₂,and