Test Bank for General, Organic, and Biological Chemistry Structures of Life 6th Edition By Karen Timberlake

Test Bank For
General, Organic, and
Biological Chemistry
Structures of Life 6th Edition By
Karen Timberlake (Special) (All
Chapters 1-24, 100% Original
Verified, A+ Grade)
All Chapters Arranged
Reverse: 24-1
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,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
A) mouth.
B) stomach.
C) small intestine.
D) large intestine.
E) pancreas.
Answer: C
Objective: 24.1
Global Outcomes: GO2

2) The digestion of fats begins when the fat globules are
A) emulsified by bile salts.
B) attacked by protease enzymes to form smaller fat globules.
C) converted to lipoproteins for greater solubility.
D) hydrolyzed to glucose and amino acids.
E) 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
A) lipids.
B) proteins.
C) carbohydrates.
D) amino acids.
E) glucose.
Answer: A
Objective: 24.1
Global Outcomes: GO2

4) Most of the energy stored in the human body is in the form of
A) glycogen.
B) glucose.
C) muscle tissue.
D) triacylglycerols.
E) the amino acid pool.
Answer: D
Objective: 24.1
Global Outcomes: GO2




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,5) Fat cells are known as
A) lysosomes.
B) adipocytes.
C) glycerides.
D) islet cells.
E) 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
A) emulsions.
B) detergents.
C) bile drops.
D) lipoproteins.
E) micelles.
Answer: E
Objective: 24.1
Global Outcomes: GO2

7) The action of pancreatic lipase on triacylglycerols produces
A) emulsions.
B) micelles.
C) monoacylglycerols and free fatty acids.
D) high-density lipoproteins.
E) low-density lipoproteins.
Answer: C
Objective: 24.1
Global Outcomes: GO2

8) A chylomicron is a
A) lipase.
B) digestive enzyme.
C) triacylglycerol.
D) transport lipoprotein.
E) storage protein.
Answer: D
Objective: 24.1
Global Outcomes: GO2




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, 9) Fatty acids are not a source of energy for the brain because
A) they cannot diffuse across the blood-brain barrier.
B) the citric acid cycle does not operate in the brain.
C) chylomicrons are too large for absorption by brain cells.
D) they are metabolized before they get as far as the brain.
E) 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
A) amino acids.
B) fatty acids.
C) glycerol.
D) glucose.
E) lactate.
Answer: D
Objective: 24.1
Global Outcomes: GO2

11) The heart muscle's primary source of fuel is
A) glucose.
B) fatty acids.
C) amino acids.
D) glycogen.
E) lactate.
Answer: B
Objective: 24.1
Global Outcomes: GO2

12) Red blood cells do not metabolize fatty acids because they have
A) no nucleus.
B) a cell wall.
C) a cell membrane.
D) no mitochondria.
E) no DNA.
Answer: D
Objective: 24.1
Global Outcomes: GO2




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