Question 1

The element that is necessary for the proper function of the enzyme carbonic anhydrase is

Accepted Answer

A) iron. 
B) cobalt. 
C) zinc. 
D) selenium. 
E) iodine. 
A) iron. 
B) cobalt. 
C) zinc. 
D) selenium. 
E) iodine.

Question 2

Factors that influence an individual's BMR (basal metabolic rate)include all of the following except

Accepted Answer

A) physical exertion. 
B) age. 
C) body weight. 
D) genetics. 
E) gender. 
A) physical exertion. 
B) age. 
C) body weight. 
D) genetics. 
E) gender.

Question 3

Eating disorders are common among girls and young women.They result from a psychological problem that causes inadequate or excessive food consumption.Two major eating disorders are anorexia nervosa and

Accepted Answer

A) marasmus. 
B) bulimia. 
C) beriberi. 
D) ketosis. 
E) pyrexia. 
A) marasmus. 
B) bulimia. 
C) beriberi. 
D) ketosis. 
E) pyrexia.

Question 4

________ creates 90 percent of the ATP normally generated.

Accepted Answer

A) Glycolysis 
B) Beta oxidation 
C) Oxidative phosphorylation 
D) Gluconeogenesis 
E) Glycogenesis 
A) Glycolysis 
B) Beta oxidation 
C) Oxidative phosphorylation 
D) Gluconeogenesis 
E) Glycogenesis

Question 5

The vitamin that prevents breakdown of vitamin A and fatty acids 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 6

The direct transfer of heat energy from one object to another through physical contact is called

Accepted Answer

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

Question 7

The major anion in body fluids is

Accepted Answer

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

Question 8

Why is the citric acid cycle called a cycle? What substances enter the cycle,and what substances leave it?

Accepted Answer

The citric acid reaction sequence is a c

Question 9

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 10

Fatty acids and many amino acids cannot be used for ________ because their catabolic pathways produce acetyl-CoA.

Accepted Answer

A) glycolysis 
B) gluconeogenesis 
C) cellular respiration 
D) glycemia 
E) glycogenesis 
A) glycolysis 
B) gluconeogenesis 
C) cellular respiration 
D) glycemia 
E) glycogenesis

Question 11

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

Accepted Answer

A) phosphoglyceric acid 
B) citric acid 
C) pyruvate 
D) NADH 
E) FADH₂ 
A) phosphoglyceric acid 
B) citric acid 
C) pyruvate 
D) NADH 
E) FADH₂

Question 12

The main purpose of the citric acid cycle is to

Accepted Answer

A) produce Acetyl CoA so that the citric acid cycle can continue. 
B) produce proteins for energy storage. 
C) phosphorylate glucose molecules. 
D) supply hydrogen atoms to the Electron Transport System. 
E) produce citric acid to make vitamin C in the mitochondria. 
A) produce Acetyl CoA so that the citric acid cycle can continue. 
B) produce proteins for energy storage. 
C) phosphorylate glucose molecules. 
D) supply hydrogen atoms to the Electron Transport System. 
E) produce citric acid to make vitamin C in the mitochondria.

Question 13

In the citric acid cycle,a 2 carbon molecule and a 4 carbon molecule combine to produce

Accepted Answer

A) fructose-1,6-bisphosphate. 
B) carbon dioxide. 
C) pyruvic acid. 
D) NADH. 
E) citric acid. 
A) fructose-1,6-bisphosphate. 
B) carbon dioxide. 
C) pyruvic acid. 
D) NADH. 
E) citric acid.

Question 14

During lipolysis,

Accepted Answer

A) triglycerides are converted into molecules of acetyl-CoA. 
B) triglycerides are broken down into glycerol and fatty acids. 
C) lipids are converted into glucose molecules. 
D) lipids are formed from excess carbohydrates. 
E) lipids are metabolized to yield ATP. 
A) triglycerides are converted into molecules of acetyl-CoA. 
B) triglycerides are broken down into glycerol and fatty acids. 
C) lipids are converted into glucose molecules. 
D) lipids are formed from excess carbohydrates. 
E) lipids are metabolized to yield ATP.

Question 15

Obesity is defined as a body weight more than ________ percent above the ideal body weight for an individual.

Accepted Answer

A) 5 
B) 10 
C) 15 
D) 20 
E) 30 
A) 5 
B) 10 
C) 15 
D) 20 
E) 30

Question 16

During the absorptive state,

Accepted Answer

A) the liver forms glycogen. 
B) adipocytes release fatty acids to the circulation. 
C) skeletal muscle breaks down glycogen. 
D) insulin levels are low. 
E) skeletal muscle fibers release glucose. 
A) the liver forms glycogen. 
B) adipocytes release fatty acids to the circulation. 
C) skeletal muscle breaks down glycogen. 
D) insulin levels are low. 
E) skeletal muscle fibers release glucose.

Question 17

During glycolysis,

Accepted Answer

A) a molecule of glucose is converted into two molecules of pyruvic acid. 
B) four molecules of ATP are produced. 
C) two molecules of ATP are consumed. 
D) hydrogen atoms are removed from organic molecules. 
E) All of the answers are correct. 
A) a molecule of glucose is converted into two molecules of pyruvic acid. 
B) four molecules of ATP are produced. 
C) two molecules of ATP are consumed. 
D) hydrogen atoms are removed from organic molecules. 
E) All of the answers are correct.

Question 18

According to the Dietary Guidelines for Americans,there are ________ basic food groups.

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 7 
A) 3 
B) 4 
C) 5 
D) 6 
E) 7

Question 19

The heat-gain center for thermoregulation

Accepted Answer

A) resides in the pre-optic hypothalamus. 
B) activates shivering thermogenesis. 
C) activates nonshivering thermogenesis. 
D) activates skin vasoconstriction. 
E) All of the answers are correct. 
A) resides in the pre-optic hypothalamus. 
B) activates shivering thermogenesis. 
C) activates nonshivering thermogenesis. 
D) activates skin vasoconstriction. 
E) All of the answers are correct.

Question 20

What happens during protein catabolism? How is this related to nitrogen balance?

Accepted Answer

Protein catabolism is the breakdown of p

Exam 25: Metabolism and Energetics

The element that is necessary for the proper function of the enzyme carbonic anhydrase is

Factors that influence an individual's BMR (basal metabolic rate)include all of the following except

Eating disorders are common among girls and young women.They result from a psychological problem that causes inadequate or excessive food consumption.Two major eating disorders are anorexia nervosa and

________ creates 90 percent of the ATP normally generated.

The vitamin that prevents breakdown of vitamin A and fatty acids is vitamin

The direct transfer of heat energy from one object to another through physical contact is called

The major anion in body fluids is

Why is the citric acid cycle called a cycle? What substances enter the cycle,and what substances leave it?

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

Fatty acids and many amino acids cannot be used for ________ because their catabolic pathways produce acetyl-CoA.

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

The main purpose of the citric acid cycle is to

In the citric acid cycle,a 2 carbon molecule and a 4 carbon molecule combine to produce

During lipolysis,

Obesity is defined as a body weight more than ________ percent above the ideal body weight for an individual.

During the absorptive state,

During glycolysis,

According to the Dietary Guidelines for Americans,there are ________ basic food groups.

The heat-gain center for thermoregulation

What happens during protein catabolism? How is this related to nitrogen balance?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural 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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