Question 1

Figure 25-1 The Citric Acid Cycle
Use Figure 25-1 to answer the following questions:
-What is the molecule labeled "5"?

Accepted Answer

A) fumaric acid 
B) citrate 6-carbon 
C) 4-carbon molecule 
D) malic acid 
E) oxaloacetic acid 
A) fumaric acid 
B) citrate 6-carbon 
C) 4-carbon molecule 
D) malic acid 
E) oxaloacetic acid

Question 2

The sum of all of the biochemical processes going on within the human body at any given time is called

Accepted Answer

A) glycolysis. 
B) oxidative phosphorylation. 
C) catabolism. 
D) anabolism. 
E) metabolism. 
A) glycolysis. 
B) oxidative phosphorylation. 
C) catabolism. 
D) anabolism. 
E) metabolism.

Question 3

Although other nutrients can feed into the citric acid cycle,________ yields energy the quickest.

Accepted Answer

A) glycogen 
B) glucose 
C) protein 
D) fat 
E) an amino acid 
A) glycogen 
B) glucose 
C) protein 
D) fat 
E) an amino acid

Question 4

________ carry excess cholesterol from peripheral tissues to the liver.

Accepted Answer

A) Very-low-density lipoproteins (VLDLs) 
B) Low-density lipoproteins (LDLs) 
C) Intermediate-density lipoproteins (IDLs) 
D) High-density lipoproteins (HDLs) 
E) Very-high-density lipoproteins (VHDLs) 
A) Very-low-density lipoproteins (VLDLs) 
B) Low-density lipoproteins (LDLs) 
C) Intermediate-density lipoproteins (IDLs) 
D) High-density lipoproteins (HDLs) 
E) Very-high-density lipoproteins (VHDLs)

Question 5

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 6

In an environment that is cooler than your body,you lose heat in a process called

Accepted Answer

A) radiation. 
B) conduction. 
C) convection. 
D) evaporation. 
E) thermal regulation. 
A) radiation. 
B) conduction. 
C) convection. 
D) evaporation. 
E) thermal regulation.

Question 7

The ________ of the mitochondrion contains large-diameter pores that are permeable to ions and small organic molecules such as pyruvic acid.

Accepted Answer

A) inner membrane 
B) plasma membrane 
C) outer membrane 
D) matrix 
E) cristae 
A) inner membrane 
B) plasma membrane 
C) outer membrane 
D) matrix 
E) cristae

Question 8

What percent of energy released from catabolism is lost as heat?

Accepted Answer

A) 20 
B) 30 
C) 40 
D) 50 
E) 60 
A) 20 
B) 30 
C) 40 
D) 50 
E) 60

Question 9

When the body is relying on internal energy reserves to continue meeting its energy demands,it is in the ________ state.

Accepted Answer

A) postabsorptive 
B) absorptive 
C) starvation 
D) deprivation 
E) preabsorptive 
A) postabsorptive 
B) absorptive 
C) starvation 
D) deprivation 
E) preabsorptive

Question 10

The carbon dioxide of respiration is formed during

Accepted Answer

A) glycolysis. 
B) the citric acid cycle. 
C) electron transport. 
D) the formation of pyruvic acid. 
E) the formation of water. 
A) glycolysis. 
B) the citric acid cycle. 
C) electron transport. 
D) the formation of pyruvic acid. 
E) the formation of water.

Question 11

A balanced diet should

Accepted Answer

A) include adequate substrates for the production of energy. 
B) provide essential amino acids and fatty acids. 
C) contain adequate amounts of vitamins and minerals. 
D) contain adequate amounts of water. 
E) All of the answers are correct. 
A) include adequate substrates for the production of energy. 
B) provide essential amino acids and fatty acids. 
C) contain adequate amounts of vitamins and minerals. 
D) contain adequate amounts of water. 
E) All of the answers are correct.

Question 12

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 13

The Dietary Guidelines for Americans recommends many servings a day of dark-green and orange vegetables.Which vitamin is particularly abundant in this food group?

Accepted Answer

A) A 
B) C 
C) E 
D) folic acid 
E) All of the answers are correct. 
A) A 
B) C 
C) E 
D) folic acid 
E) All of the answers are correct.

Question 14

The inherited metabolic disorder that results from the accumulation of phenylketones from phenylalanine is

Accepted Answer

A) ketosis. 
B) acidosis. 
C) marasmus. 
D) phenylketonuria. 
E) kwashiorkor. 
A) ketosis. 
B) acidosis. 
C) marasmus. 
D) phenylketonuria. 
E) kwashiorkor.

Question 15

An element that is a component of hemoglobin,myoglobin,and cytochromes is

Accepted Answer

A) calcium. 
B) magnesium. 
C) iron. 
D) zinc. 
E) cobalt. 
A) calcium. 
B) magnesium. 
C) iron. 
D) zinc. 
E) cobalt.

Question 16

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 17

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 18

For adults,there are ________ essential amino acids.

Accepted Answer

A) 2 
B) 6 
C) 8 
D) 10 
E) 20 
A) 2 
B) 6 
C) 8 
D) 10 
E) 20

Question 19

Inorganic ions released through the dissociation of electrolytes are called

Accepted Answer

A) nutrients. 
B) vitamins. 
C) trace minerals. 
D) free radicals. 
E) minerals. 
A) nutrients. 
B) vitamins. 
C) trace minerals. 
D) free radicals. 
E) minerals.

Question 20

The energy content of foods is commonly given in units of

Accepted Answer

A) grams. 
B) kilograms. 
C) kilocalories. 
D) moles. 
E) ounces. 
A) grams. 
B) kilograms. 
C) kilocalories. 
D) moles. 
E) ounces.

Exam 25: Metabolism and Energetics

Figure 25-1 The Citric Acid Cycle Use Figure 25-1 to answer the following questions: -What is the molecule labeled "5"?

The sum of all of the biochemical processes going on within the human body at any given time is called

Although other nutrients can feed into the citric acid cycle,________ yields energy the quickest.

________ carry excess cholesterol from peripheral tissues to the liver.

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

In an environment that is cooler than your body,you lose heat in a process called

The ________ of the mitochondrion contains large-diameter pores that are permeable to ions and small organic molecules such as pyruvic acid.

What percent of energy released from catabolism is lost as heat?

When the body is relying on internal energy reserves to continue meeting its energy demands,it is in the ________ state.

The carbon dioxide of respiration is formed during

A balanced diet should

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

The Dietary Guidelines for Americans recommends many servings a day of dark-green and orange vegetables.Which vitamin is particularly abundant in this food group?

The inherited metabolic disorder that results from the accumulation of phenylketones from phenylalanine is

An element that is a component of hemoglobin,myoglobin,and cytochromes is

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

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

For adults,there are ________ essential amino acids.

Inorganic ions released through the dissociation of electrolytes are called

The energy content of foods is commonly given in units of

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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