Question 1

Why are triacylglycerols an excellent design for energy stores?

Accepted Answer

A)  They are anhydrous. 
B)  They are small. 
C)  They are highly reduced. 
D)  They are anhydrous, and they are small. 
E)  They are anhydrous, and they are highly reduced. 
A)  They are anhydrous. 
B)  They are small. 
C)  They are highly reduced. 
D)  They are anhydrous, and they are small. 
E)  They are anhydrous, and they are highly reduced.

Question 2

Prostaglandins and thromboxanes are synthesized from __________________,a 20-carbon fatty acid.

Accepted Answer

The answer of Prostaglandins and thromboxanes are synthesized from __________________,a...

Question 3

Briefly outline the steps in fatty acid degradation.

Accepted Answer

An activated acyl group is oxidized by F

Question 4

The $\beta$ oxidation of myristyl-CoA (C-14:0)yields

Accepted Answer

A)  7 acetyl-CoA + 7 FADH2 + 7 NADH + 7 H+. 
B)  6 acetyl-CoA + 7 FADH2 + 7 NADH + 7 H+. 
C)  7 acetyl-CoA + 6 FADH2 + 6 NADH + 6 H+. 
D)  7 acetyl-CoA + 7 FAD + 7 NAD+. 
E)  14 acetyl-CoA + 12 FADH2 + 12 NADH + 12 H+. 
A)  7 acetyl-CoA + 7 FADH2 + 7 NADH + 7 H+. 
B)  6 acetyl-CoA + 7 FADH2 + 7 NADH + 7 H+. 
C)  7 acetyl-CoA + 6 FADH2 + 6 NADH + 6 H+. 
D)  7 acetyl-CoA + 7 FAD + 7 NAD+. 
E)  14 acetyl-CoA + 12 FADH2 + 12 NADH + 12 H+.

Question 5

What organs or tissues prefer to use ketone bodies such as acetoacetate as a fuel energy source instead of glucose?

Accepted Answer

A)  heart muscle 
B)  skeletal muscle 
C)  brain 
D)  pancreas 
E)  None of the answers is correct. 
A)  heart muscle 
B)  skeletal muscle 
C)  brain 
D)  pancreas 
E)  None of the answers is correct.

Question 6

Why is the anhydrous nature of triacylglycerols important in energy efficiency?

Accepted Answer

Carbohydrates need to be hydrated to be

Question 7

The committed step of fatty acid synthesis is the formation of ________________.

Accepted Answer

The answer of The committed step of fatty acid synthesis...

Question 8

What is the fate of glycerol released during lipolysis?

Accepted Answer

The glycerol is absorbed by th

Question 9

The levels of which metabolite determine whether acetyl-CoA,made from fatty acids,can enter the citric acid cycle?

Accepted Answer

A)  citrate 
B)  succinyl CoA 
C)  oxaloacetate 
D)   $\alpha$-ketoglutarate 
E)  None of the answers is correct. 
A)  citrate 
B)  succinyl CoA 
C)  oxaloacetate 
D)   $\alpha$-ketoglutarate 
E)  None of the answers is correct.

Question 10

Coenzyme(s)involved in the degradation of saturated fatty acyl CoA include(s)

Accepted Answer

A)  FAD. 
B)  NAD+. 
C)  TPP. 
D)  FAD and NAD+. 
E)  All the answers are correct. 
A)  FAD. 
B)  NAD+. 
C)  TPP. 
D)  FAD and NAD+. 
E)  All the answers are correct.

Exam 22: Fatty Acid Metabolism

Why are triacylglycerols an excellent design for energy stores?

Prostaglandins and thromboxanes are synthesized from __________________,a 20-carbon fatty acid.

Briefly outline the steps in fatty acid degradation.

The β\betaβ oxidation of myristyl-CoA (C-14:0)yields

What organs or tissues prefer to use ketone bodies such as acetoacetate as a fuel energy source instead of glucose?

Why is the anhydrous nature of triacylglycerols important in energy efficiency?

The committed step of fatty acid synthesis is the formation of ________________.

What is the fate of glycerol released during lipolysis?

The levels of which metabolite determine whether acetyl-CoA,made from fatty acids,can enter the citric acid cycle?

Coenzyme(s)involved in the degradation of saturated fatty acyl CoA include(s)

Biochemistry: An Evolving Science

Protein Composition and Structure

Exploring Proteins and Proteomes

DNA, RNA, and the Flow of Genetic Information

Exploring Genes and Genomes

Exploring Evolution and Bioinformatics

Hemoglobin: a Portrait of a Protein in Action

Enzymes: Basic Concepts and Kinetics

Catalytic Strategies

Regulatory Strategies

Carbohydrates

Lipids and Cell Membranes

Membrane Channels and Pumps

Signal-Transduction Pathways

Metabolism: Basic Concepts and Design

Glycolysis and Gluconeogenesis

The Citric Acid Cycle

Oxidative Phosphorylation

The Light Reactions of Photosynthesis

The Calvin Cycle and the Pentose Phosphate Pathway

Glycogen Metabolism

Protein Turnover and Amino Acid Catabolism

The Biosynthesis of Amino Acids

Nucleotide Biosynthesis

Biosynthesis of Membrane Lipids and Steroids

The Integration of Metabolism

DNA Replication, repair, and Recombination

RNA Synthesis and Processing

Protein Synthesis

The Control of Gene Expression in Prokaryotes

The Control of Gene Expression in Eukaryotes

Sensory Systems

The Immune System

Molecular Motors

Drug Development

Filters

The $\beta$ oxidation of myristyl-CoA (C-14:0)yields