Question 1

A cell produces how many ATP molecules from the breakdown of one 18-carbon fatty acid molecule?

Accepted Answer

A)  4 
B)  16 
C)  120 
D)  32 
E)  60 
A)  4 
B)  16 
C)  120 
D)  32 
E)  60

Question 2

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.

Question 3

An ion that is a necessary component of high-energy compounds, nucleic acids, and bone matrix is

Accepted Answer

A)  chloride. 
B)  sulfate. 
C)  phosphate. 
D)  bicarbonate. 
E)  iodide. 
A)  chloride. 
B)  sulfate. 
C)  phosphate. 
D)  bicarbonate. 
E)  iodide.

Question 4

The vitamin that is required for the synthesis of visual pigments is

Accepted Answer

A)  vitamin A. 
B)  vitamin B. 
C)  vitamin C. 
D)  vitamin D. 
E)  vitamin E. 
A)  vitamin A. 
B)  vitamin B. 
C)  vitamin C. 
D)  vitamin D. 
E)  vitamin E.

Question 5

Regarding the citric acid cycle, which molecule participates in a complex reaction involving NAD and coenzyme A within the mitochondrion?

Accepted Answer

A)  pyruvate 
B)  citric acid 
C)  ATP 
D)  oxygen 
E)  FADH2 
A)  pyruvate 
B)  citric acid 
C)  ATP 
D)  oxygen 
E)  FADH2

Question 6

Place the following steps of the electron transport system (ETS) and ATP formation in the correct order. 1. Movement of hydrogen ions provides energy to ATP synthesis.
2) Electrons from FADH2 pass to coenzyme Q.
3) Electrons are transported to respiratory complex III.
4) ADP combines with P to form ATP.
5) Electrons from NADH pass to coenzyme Q.
6) Electrons combine with oxygen and hydrogen ions to form water molecules.

Accepted Answer

A)  6, 3, 5, 2, 4, 1 
B)  5, 2, 3, 6, 1, 4 
C)  1, 2, 6, 4, 3, 5 
D)  4, 6, 1, 3, 5, 2 
E)  2, 3, 6, 5, 4, 1 
A)  6, 3, 5, 2, 4, 1 
B)  5, 2, 3, 6, 1, 4 
C)  1, 2, 6, 4, 3, 5 
D)  4, 6, 1, 3, 5, 2 
E)  2, 3, 6, 5, 4, 1

Question 7

Figure 17-1 The Citric Acid Cycle
Use Figure 17-1 to identify the element marked with a letter. (Example: COS1U1B12S1U1B0, HS1U1B12S1U1B0O)
-The ion(s) or molecule(s) labeled F 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 8

Which of the following is the first intermediate formed in the citric acid cycle?

Accepted Answer

A)  coenzyme A 
B)  pyruvate 
C)  FADH2 
D)  citric acid 
E)  oxygen 
A)  coenzyme A 
B)  pyruvate 
C)  FADH2 
D)  citric acid 
E)  oxygen

Question 9

In the liver and skeletal muscles, glucose molecules are stored as

Accepted Answer

A)  triglycerides. 
B)  fatty acids. 
C)  pyruvate. 
D)  sucrose. 
E)  glycogen. 
A)  triglycerides. 
B)  fatty acids. 
C)  pyruvate. 
D)  sucrose. 
E)  glycogen.

Question 10

Figure 17-1 The Citric Acid Cycle
Use Figure 17-1 to identify the element marked with a letter. (Example: COS1U1B12S1U1B0, HS1U1B12S1U1B0O)
-The ion(s) or molecule(s) labeled C 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 11

Which of the following is a major anion in body fluids, primarily excreted through urine and sweat?

Accepted Answer

A)  sodium 
B)  chloride 
C)  potassium 
D)  calcium 
E)  zinc 
A)  sodium 
B)  chloride 
C)  potassium 
D)  calcium 
E)  zinc

Question 12

Gluconeogenesis is the synthesis of glucose from precursor molecules such as

Accepted Answer

A)  sucrose. 
B)  glycerol. 
C)  fructose. 
D)  glycogen. 
E)  galactose. 
A)  sucrose. 
B)  glycerol. 
C)  fructose. 
D)  glycogen. 
E)  galactose.

Question 13

Which of the following minerals is a cofactor for some enzymes and is a mineral whose primary route of excretion is through feces and trace amounts in urine?

Accepted Answer

A)  chloride 
B)  copper 
C)  iron 
D)  manganese 
E)  calcium 
A)  chloride 
B)  copper 
C)  iron 
D)  manganese 
E)  calcium

Question 14

Which is accurate regarding ketoacidosis?

Accepted Answer

A)  Blood pH may drop below 7.05. 
B)  Blood pH may rise to 9.05. 
C)  Blood pH is not affected. 
D)  Increased alkalinity of body tissues occurs. 
E)  Conditions do not ever become so severe that coma results. 
A)  Blood pH may drop below 7.05. 
B)  Blood pH may rise to 9.05. 
C)  Blood pH is not affected. 
D)  Increased alkalinity of body tissues occurs. 
E)  Conditions do not ever become so severe that coma results.

Question 15

Beriberi is a degenerative disease caused by a deficiency of ________, having the effects of muscle weakness and CNS and cardiovascular problems including heart disease.

Accepted Answer

A)  vitamin B1 (thiamine) 
B)  vitamin B12 (cobalamin) 
C)  vitamin C (ascorbic acid) 
D)  niacin (nicotinic acid) 
E)  vitamin B2 (riboflavin) 
A)  vitamin B1 (thiamine) 
B)  vitamin B12 (cobalamin) 
C)  vitamin C (ascorbic acid) 
D)  niacin (nicotinic acid) 
E)  vitamin B2 (riboflavin)

Question 16

Lipids that can diffuse easily across plasma membranes are called

Accepted Answer

A)  triglycerides. 
B)  steroids. 
C)  albumins. 
D)  high-density lipoproteins. 
E)  free fatty acids. 
A)  triglycerides. 
B)  steroids. 
C)  albumins. 
D)  high-density lipoproteins. 
E)  free fatty acids.

Question 17

Which bulk mineral is a major cation in body fluids and is essential for normal membrane function?

Accepted Answer

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

Question 18

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 19

Which of the following activities expends the most calories per hour?

Accepted Answer

A)  speed walking 
B)  jogging 
C)  slow walking 
D)  competitive swimming 
E)  climbing stairs 
A)  speed walking 
B)  jogging 
C)  slow walking 
D)  competitive swimming 
E)  climbing stairs

Question 20

The process of deamination produces

Accepted Answer

A)  keto acids. 
B)  high levels of proteins. 
C)  an ammonium ion. 
D)  acetyl CoA. 
E)  B vitamins. 
A)  keto acids. 
B)  high levels of proteins. 
C)  an ammonium ion. 
D)  acetyl CoA. 
E)  B vitamins.

A cell produces how many ATP molecules from the breakdown of one 18-carbon fatty acid molecule?

Protein catabolism is an impractical source of quick energy because

An ion that is a necessary component of high-energy compounds, nucleic acids, and bone matrix is

The vitamin that is required for the synthesis of visual pigments is

Regarding the citric acid cycle, which molecule participates in a complex reaction involving NAD and coenzyme A within the mitochondrion?

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO₂, H₂O) -The ion(s) or molecule(s) labeled F is (are)

Which of the following is the first intermediate formed in the citric acid cycle?

In the liver and skeletal muscles, glucose molecules are stored as

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO₂, H₂O) -The ion(s) or molecule(s) labeled C is (are)

Which of the following is a major anion in body fluids, primarily excreted through urine and sweat?

Gluconeogenesis is the synthesis of glucose from precursor molecules such as

Which of the following minerals is a cofactor for some enzymes and is a mineral whose primary route of excretion is through feces and trace amounts in urine?

Which is accurate regarding ketoacidosis?

Beriberi is a degenerative disease caused by a deficiency of ________, having the effects of muscle weakness and CNS and cardiovascular problems including heart disease.

Lipids that can diffuse easily across plasma membranes are called

Which bulk mineral is a major cation in body fluids and is essential for normal membrane function?

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

Which of the following activities expends the most calories per hour?

The process of deamination produces

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

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Exam 17: Metabolism and Energetics

A cell produces how many ATP molecules from the breakdown of one 18-carbon fatty acid molecule?

Protein catabolism is an impractical source of quick energy because

An ion that is a necessary component of high-energy compounds, nucleic acids, and bone matrix is

The vitamin that is required for the synthesis of visual pigments is

Regarding the citric acid cycle, which molecule participates in a complex reaction involving NAD and coenzyme A within the mitochondrion?

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO2, H2O) -The ion(s) or molecule(s) labeled F is (are)

Which of the following is the first intermediate formed in the citric acid cycle?

In the liver and skeletal muscles, glucose molecules are stored as

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO2, H2O) -The ion(s) or molecule(s) labeled C is (are)

Which of the following is a major anion in body fluids, primarily excreted through urine and sweat?

Gluconeogenesis is the synthesis of glucose from precursor molecules such as

Which of the following minerals is a cofactor for some enzymes and is a mineral whose primary route of excretion is through feces and trace amounts in urine?

Which is accurate regarding ketoacidosis?

Beriberi is a degenerative disease caused by a deficiency of ________, having the effects of muscle weakness and CNS and cardiovascular problems including heart disease.

Lipids that can diffuse easily across plasma membranes are called

Which bulk mineral is a major cation in body fluids and is essential for normal membrane function?

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

Which of the following activities expends the most calories per hour?

The process of deamination produces

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

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO₂, H₂O) -The ion(s) or molecule(s) labeled F is (are)

Figure 17-1 The Citric Acid Cycle Use Figure 17-1 to identify the element marked with a letter. (Example: CO₂, H₂O) -The ion(s) or molecule(s) labeled C is (are)