Question 1

Lipogenesis is common for organic molecules because the intermediate ________ is formed in most nutrientmetabolic processes.

Accepted Answer

A)  pyruvate 
B)  acetyl-CoA 
C)  glycerol 
D)  glucose 
E)  lipoprotein 
A)  pyruvate 
B)  acetyl-CoA 
C)  glycerol 
D)  glucose 
E)  lipoprotein

Question 2

Which of the following statements regarding brown fat is false?

Accepted Answer

A)  Brown fat is found in infants. 
B)  Brown fat functions in nonshivering thermogenesis. 
C)  Brown fat contains a rich vascular supply. 
D)  Brown fat is innervated by the sympathetic nervous system. 
E)  Brown fat is concentrated around visceral organs in the adult. 
A)  Brown fat is found in infants. 
B)  Brown fat functions in nonshivering thermogenesis. 
C)  Brown fat contains a rich vascular supply. 
D)  Brown fat is innervated by the sympathetic nervous system. 
E)  Brown fat is concentrated around visceral organs in the adult.

Question 3

In transamination, the amino group of an amino acid is

Accepted Answer

A)  converted to ammonia. 
B)  converted to urea. 
C)  transferred to a keto acid. 
D)  absorbed by water. 
E)  transferred to acetyl-CoA. 
A)  converted to ammonia. 
B)  converted to urea. 
C)  transferred to a keto acid. 
D)  absorbed by water. 
E)  transferred to acetyl-CoA.

Question 4

Linoleic acid and linolenic acid are examples of

Accepted Answer

A)  transport proteins. 
B)  lipoproteins. 
C)  essential fatty acids. 
D)  essential amino acids. 
E)  vitamins. 
A)  transport proteins. 
B)  lipoproteins. 
C)  essential fatty acids. 
D)  essential amino acids. 
E)  vitamins.

Question 5

Which of the following individuals would lose heat the fastest in a cold room?

Accepted Answer

A)  an adult man 
B)  an adult woman 
C)  an adolescent male 
D)  a child 
E)  a newborn infant 
A)  an adult man 
B)  an adult woman 
C)  an adolescent male 
D)  a child 
E)  a newborn infant

Question 6

Reactions within ________ provide most of the energy needed by a typical cell.

Accepted Answer

A)  cytoplasm 
B)  the plasma membrane 
C)  the mitochondria 
D)  the endoplasmic reticulum 
E)  nucleus 
A)  cytoplasm 
B)  the plasma membrane 
C)  the mitochondria 
D)  the endoplasmic reticulum 
E)  nucleus

Question 7

In order for glycolysis to proceed, which of the following need not be present?

Accepted Answer

A)  glucose 
B)  acetyl-CoA 
C)  ATP 
D)  NAD 
E)  ADP 
A)  glucose 
B)  acetyl-CoA 
C)  ATP 
D)  NAD 
E)  ADP

Question 8

The vitamin that is required for proper bone growth and for calcium absorption and retention is vitamin

Accepted Answer

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

Question 9

A cation that often acts as a cofactor for enzymes is

Accepted Answer

A)  sodium. 
B)  potassium. 
C)  calcium. 
D)  magnesium. 
E)  zinc. 
A)  sodium. 
B)  potassium. 
C)  calcium. 
D)  magnesium. 
E)  zinc.

Question 10

Scurvy is a result of deficiency in vitamin

Accepted Answer

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

Question 11

Fatty acids that are necessary for proper health but cannot be synthesized by the body are called ________fatty acids.

Accepted Answer

A)  oxidative 
B)  metabolic 
C)  essential 
D)  vital 
E)  non-metabolic 
A)  oxidative 
B)  metabolic 
C)  essential 
D)  vital 
E)  non-metabolic

Question 12

The lipoproteins that carry absorbed lipids from the intestinal tract to the bloodstream are

Accepted Answer

A)  HDLs. 
B)  VLDLs. 
C)  LDLs. 
D)  chylomicrons. 
E)  coenzymes. 
A)  HDLs. 
B)  VLDLs. 
C)  LDLs. 
D)  chylomicrons. 
E)  coenzymes.

Question 13

During the citric acid cycle, both NAD and FAD ________ a hydrogen atom and become ________.

Accepted Answer

A)  lose; oxidized 
B)  gain; oxidized 
C)  lose; reduced 
D)  gain; reduced 
E)  gain; ATP 
A)  lose; oxidized 
B)  gain; oxidized 
C)  lose; reduced 
D)  gain; reduced 
E)  gain; ATP

Question 14

Lipoproteins that carry mostly cholesterol to peripheral tissues are called

Accepted Answer

A)  chylomicrons. 
B)  very-low-density lipoproteins. 
C)  micelles. 
D)  low-density lipoproteins. 
E)  high-density lipoproteins. 
A)  chylomicrons. 
B)  very-low-density lipoproteins. 
C)  micelles. 
D)  low-density lipoproteins. 
E)  high-density lipoproteins.

Question 15

More than half the heat is lost from the body indoors through the process of

Accepted Answer

A)  radiation. 
B)  conduction. 
C)  convection. 
D)  evaporation. 
E)  concentration. 
A)  radiation. 
B)  conduction. 
C)  convection. 
D)  evaporation. 
E)  concentration.

Question 16

The vitamin that plays a role in maintaining epithelia and is required for the synthesis of visual pigmentsis vitamin

Accepted Answer

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

Question 17

When the temperature of the preoptic area of the hypothalamus exceeds its thermostat setting,

Accepted Answer

A)  peripheral vasoconstriction occurs. 
B)  skin blood flow increases. 
C)  rate and depth of respiration decreases. 
D)  sweat glands are inhibited. 
E)  blood is shunted to deep veins. 
A)  peripheral vasoconstriction occurs. 
B)  skin blood flow increases. 
C)  rate and depth of respiration decreases. 
D)  sweat glands are inhibited. 
E)  blood is shunted to deep veins.

Question 18

Figure 25-1 The Citric Acid Cycle
  
Use Figure 25-1 to answer the following questions:
-What is the molecule labeled "2"?

Accepted Answer

A)  hydrogen atoms 
B)  citric acid 
C)  NADH 
D)  carbon dioxide 
E)  FADH2 
A)  hydrogen atoms 
B)  citric acid 
C)  NADH 
D)  carbon dioxide 
E)  FADH2

Question 19

Lipogenesis generally begins with

Accepted Answer

A)  glucose. 
B)  amino acids. 
C)  fatty acids. 
D)  acetyl-CoA. 
E)  succinyl-CoA. 
A)  glucose. 
B)  amino acids. 
C)  fatty acids. 
D)  acetyl-CoA. 
E)  succinyl-CoA.

Question 20

In oxidative phosphorylation, energy for the synthesis of ATP is directly obtained from the

Accepted Answer

A)  splitting of oxygen molecules. 
B)  breaking of the covalent bonds in glucose. 
C)  movement of hydrogen ions through channels in the inner mitochondrial membrane. 
D)  combination of two atoms of hydrogen and one atom of oxygen to form water. 
E)  oxidation of acetyl-CoA. 
A)  splitting of oxygen molecules. 
B)  breaking of the covalent bonds in glucose. 
C)  movement of hydrogen ions through channels in the inner mitochondrial membrane. 
D)  combination of two atoms of hydrogen and one atom of oxygen to form water. 
E)  oxidation of acetyl-CoA.

Exam 25: Metabolism, Nutrition, and Energetics

Lipogenesis is common for organic molecules because the intermediate ________ is formed in most nutrientmetabolic processes.

Which of the following statements regarding brown fat is false?

In transamination, the amino group of an amino acid is

Linoleic acid and linolenic acid are examples of

Which of the following individuals would lose heat the fastest in a cold room?

Reactions within ________ provide most of the energy needed by a typical cell.

In order for glycolysis to proceed, which of the following need not be present?

The vitamin that is required for proper bone growth and for calcium absorption and retention is vitamin

A cation that often acts as a cofactor for enzymes is

Scurvy is a result of deficiency in vitamin

Fatty acids that are necessary for proper health but cannot be synthesized by the body are called ________fatty acids.

The lipoproteins that carry absorbed lipids from the intestinal tract to the bloodstream are

During the citric acid cycle, both NAD and FAD ________ a hydrogen atom and become ________.

Lipoproteins that carry mostly cholesterol to peripheral tissues are called

More than half the heat is lost from the body indoors through the process of

The vitamin that plays a role in maintaining epithelia and is required for the synthesis of visual pigmentsis vitamin

When the temperature of the preoptic area of the hypothalamus exceeds its thermostat setting,

Figure 25-1 The Citric Acid Cycle Use Figure 25-1 to answer the following questions: -What is the molecule labeled "2"?

Lipogenesis generally begins with

In oxidative phosphorylation, energy for the synthesis of ATP is directly obtained from the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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During the citric acid cycle, both NAD and FAD a hydrogen atom and become .