Test Bank For - Biological Chemistry Structures of Life 6 th Ed...

Test Bank For General, Organic, and Biological Chemistry Structures of Life 6 th Edition By Karen Timberlake (Special) (All Chapters 1-24, 100% Original Verified, A+ Grade) All Chapters Arranged

Reverse: 24-1

This is The Original Test Bank For 6 th Edition, All other Files in The Market are Fake/Old/Wrong Edition. 1 / 4

General, Organic and Biological Chemistry: Structures of Life, 6e (Timberlake)

Chapter 24 Metabolic Pathways for Lipids and Amino Acids 24.1 Multiple-Choice Questions 1) The digestion of fats begins in the

• mouth.
• stomach.
• small intestine.
• large intestine.
• pancreas.

Answer: C

Objective: 24.1

Global Outcomes: GO2

2) The digestion of fats begins when the fat globules are

• emulsified by bile salts.
• attacked by protease enzymes to form smaller fat globules.
• converted to lipoproteins for greater solubility.
• hydrolyzed to glucose and amino acids.
• hydrolyzed to glycerol and fatty acids.

Answer: A

Objective: 24.1

Global Outcomes: GO2

3) Fatty acids and glycerol are produced from the metabolism of

• lipids.
• proteins.
• carbohydrates.
• amino acids.
• glucose.

Answer: A

Objective: 24.1

Global Outcomes: GO2

4) Most of the energy stored in the human body is in the form of

• glycogen.
• glucose.
• muscle tissue.
• triacylglycerols.
• the amino acid pool.

Answer: D

Objective: 24.1

Global Outcomes: GO2

1 Copyright © 2019 Pearson Education, Inc. 2 / 4

5) Fat cells are known as

• lysosomes.
• adipocytes.
• glycerides.
• islet cells.
• monoacylglycerols.

Answer: B

Objective: 24.1

Global Outcomes: GO2

6) The small droplets of fat that are the first step in the digestion of dietary fats are called

• emulsions.
• detergents.
• bile drops.
• lipoproteins.
• micelles.

Answer: E

Objective: 24.1

Global Outcomes: GO2

7) The action of pancreatic lipase on triacylglycerols produces

• emulsions.
• micelles.
• monoacylglycerols and free fatty acids.
• high-density lipoproteins.
• low-density lipoproteins.

Answer: C

Objective: 24.1

Global Outcomes: GO2

8) A chylomicron is a

• lipase.
• digestive enzyme.
• triacylglycerol.
• transport lipoprotein.
• storage protein.

Answer: D

Objective: 24.1

Global Outcomes: GO2

2 Copyright © 2019 Pearson Education, Inc. 3 / 4

9) Fatty acids are not a source of energy for the brain because

• they cannot diffuse across the blood-brain barrier.
• the citric acid cycle does not operate in the brain.
• chylomicrons are too large for absorption by brain cells.
• they are metabolized before they get as far as the brain.
• there is no lipase in the brain.

Answer: A

Objective: 24.1

Global Outcomes: GO2

10) The source of energy for red blood cells is

• amino acids.
• fatty acids.
• glycerol.
• glucose.
• lactate.

Answer: D

Objective: 24.1

Global Outcomes: GO2

11) The heart muscle's primary source of fuel is

• glucose.
• fatty acids.
• amino acids.
• glycogen.
• lactate.

Answer: B

Objective: 24.1

Global Outcomes: GO2

12) Red blood cells do not metabolize fatty acids because they have

• no nucleus.
• a cell wall.
• a cell membrane.
• no mitochondria.
• no DNA.

Answer: D

Objective: 24.1

Global Outcomes: GO2

3 Copyright © 2019 Pearson Education, Inc.

• / 4