Chapter 30 Nutrition and Metabolism

Chapter 30  Nutrition and Metabolism

TRUE/F ALSE

1. Metabolism requires the use of enzymes to catalyze chemical reactions.

ANS: T DIF: Memorization REF: Page 932 TOP: Overview of Nutrition and Metabolism

2. Heat released in catabolism is used as an energy source for cell functions.

ANS: F DIF: Memorization TOP: Overview of Nutrition and Metabolism

3. All cells have basically the same metabolic rate.

ANS: F DIF: Memorization TOP: Overview of Nutrition and Metabolism

4. Products derived from anabolism may differ from cell to cell.

ANS: T DIF: Memorization TOP: Overview of Nutrition and Metabolism

REF: Page 933

REF: Page 934

REF: Page 934

5. All types of complex carbohydrates are broken down in the body into simpler carbohydrates before they are absorbed.

ANS: F DIF: Memorization REF: Page 934 TOP: Dietary Sources of Carbohydrates

6. Intermediate products formed during the Krebs cycle are all acids.

ANS: T DIF: Memorization
REF: Page 937 (Figure 30-7) TOP: Citric Acid Cycle

7. Oxidative phosphorylation refers to the breakdown of ATP into ADP, phosphate, and energy in the presence of oxygen.

ANS: F DIF: Memorization REF: Page 939 TOP: Electron Transport System and Oxidative Phosphorylation

Mosby items and derived items © 2013, 2010, 2007, 2003 by Mosby, Inc., an affiliate of Elsevier Inc.

Test Bank 30A-2

8. Oxidative phosphorylation refers to the joining of a phosphate group to ADP to form ATP.

ANS: T DIF: Memorization REF: Page 939 TOP: Electron Transport System and Oxidative Phosphorylation

MULTIPLE CHOICE

1. Which of the following is true of metabolism?

1. It involves both a physical and a chemical breakdown of foods.
2. It occurs both inside and outside of cells.
3. It involves synthesis and decomposition.
4. Energy is released from the process of anabolism and catabolism.

ANS: C DIF: Memorization TOP: Overview of Nutrition and Metabolism

2. Which of the following is not true of ATP?

1. It is a high-energy substance.
2. It is formed by the synthesis of ADP and phosphate.
3. It releases energy when split.
4. It cannot be recycled after it is broken down.

ANS: D DIF: Memorization TOP: Overview of Nutrition and Metabolism

3. Catabolism is a _____ process involving the _____ of energy.

1. synthesis; release
2. decomposition; release
3. synthesis; use
4. decomposition; use

ANS: B DIF: Memorization TOP: Overview of Nutrition and Metabolism

4. ADP is an abbreviation for:

1. aniline diphosphate.
2. adenine diphosphate.
3. adenosine diphosphate.
4. adenosine triphosphate.

ANS: C DIF: Memorization TOP: Overview of Nutrition and Metabolism

REF: Page 932

REF: Page 934

REF: Page 932

REF: Page 934

5. Which of the following is true of energy released by the breakdown of food substances? a. It is used to synthesize ATP.

Mosby items and derived items © 2013, 2010, 2007, 2003 by Mosby, Inc., an affiliate of Elsevier Inc.

Test Bank

30B-2

2. It is used to decompose ATP.
3. It is changed to heat energy and used for cell functioning.
4. It is used directly for cell functioning.

ANS: A DIF: Memorization TOP: Overview of Nutrition and Metabolism

REF: Page 934

6. In which of the following cells is glucose phosphorylation reversible? a. Heart

b. Pancreas c. Kidney d. Muscle

ANS: C DIF: Memorization TOP: Glucose Transport and Phosphorylation

REF: Page 935

7. The cycle in which an ATP high-energy bond is broken to yield a phosphate group, ADP, and energy and then recombined to form ATP is called the:

1. conversion of monosaccharides.
2. ATP conversion.

c. ATP/ADP system. d. metabolic pathway.

ANS: C DIF: Memorization TOP: Overview of Nutrition and Metabolism

8. The preferred energy fuel of the body is:

1. fructose.
2. glucose.
3. amino acids.
4. fatty acids.

ANS: B DIF: Memorization TOP: Carbohydrate Metabolism

9. The process of splitting glycogen is called: a. glycogenesis.
b. glycogenolysis.
c. gluconeogenesis.

ANS: B DIF: Memorization TOP: Glycogenolysis

REF: Page 934

REF: Page 934

REF: Page 942