Question 1

In eukaryotes, the degradation of fatty acids occurs in the ___________________ (be specific).

Accepted Answer

mitochondr

Question 2

What is the committed step in fatty acid synthesis?

Accepted Answer

A)  binding of the fatty acyl group to the acyl carrier protein 
B)  synthesis of malonyl CoA 
C)  transacylase reaction 
D)  the formation of acetoacetyl-ACP 
E)  None of the answers is correct. 
A)  binding of the fatty acyl group to the acyl carrier protein 
B)  synthesis of malonyl CoA 
C)  transacylase reaction 
D)  the formation of acetoacetyl-ACP 
E)  None of the answers is correct.

Question 3

What is the approximate energy yield from complete oxidation of fatty acids?

Accepted Answer

A)  3 kcal g-1 
B)  4 kcal g-1 
C)  6 kcal g-1 
D)  9 kcal g-1 
E)  11 kcal g-1 
A)  3 kcal g-1 
B)  4 kcal g-1 
C)  6 kcal g-1 
D)  9 kcal g-1 
E)  11 kcal g-1

Question 4

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.

Question 5

$\beta$oxidation of odd-numbered fatty acids produces acetyl-CoA and _______________.

Accepted Answer

The answer of $\beta$oxidation of odd-numbered fatty acids produces acetyl-CoA...

Question 6

How are fatty acids larger than 16 carbons formed?

Accepted Answer

A)  By elongation reactions catalyzed by enzymes on the endoplasmic reticulum 
B)  By one-carbon additions at the mitochondrial membrane 
C)  By elongation reactions catalyzed by enzymes in the peroxisomes 
D)  By addition of acetoacetyl CoA 
E)  None of the answers is correct. 
A)  By elongation reactions catalyzed by enzymes on the endoplasmic reticulum 
B)  By one-carbon additions at the mitochondrial membrane 
C)  By elongation reactions catalyzed by enzymes in the peroxisomes 
D)  By addition of acetoacetyl CoA 
E)  None of the answers is correct.

Question 7

Glucagon and _______________ stimulate the breakdown of triacylglycerols by activation of a hormone-sensitive lipase.

Accepted Answer

epinephrin

Question 8

The hormone __________ induces lipolysis, whereas the hormone __________ inhibits the process.

Accepted Answer

A)  epinephrine; adrenocorticotropic hormone 
B)  glucagon; insulin 
C)  insulin; norepinephrine 
D)  glucagon; epinephrine 
E)  epinephrine; glucagon 
A)  epinephrine; adrenocorticotropic hormone 
B)  glucagon; insulin 
C)  insulin; norepinephrine 
D)  glucagon; epinephrine 
E)  epinephrine; glucagon

Question 9

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

Accepted Answer

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

Question 10

The enzyme methylmalonyl CoA mutase contains a derivative of _____ as its coenzyme.

Accepted Answer

A)  pyridoxamine 
B)  niacin 
C)  riboflavin 
D)  cobalamin 
E)  pantothenic acid 
A)  pyridoxamine 
B)  niacin 
C)  riboflavin 
D)  cobalamin 
E)  pantothenic acid

Exam 22: Fatty Acid Metabolism

In eukaryotes, the degradation of fatty acids occurs in the ___________________ (be specific).

What is the committed step in fatty acid synthesis?

What is the approximate energy yield from complete oxidation of fatty acids?

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

β\betaβ oxidation of odd-numbered fatty acids produces acetyl-CoA and _______________.

How are fatty acids larger than 16 carbons formed?

Glucagon and _______________ stimulate the breakdown of triacylglycerols by activation of a hormone-sensitive lipase.

The hormone __________ induces lipolysis, whereas the hormone __________ inhibits the process.

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

The enzyme methylmalonyl CoA mutase contains a derivative of _____ as its coenzyme.

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

Oxidative Phosphorylation

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

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

$\beta$ oxidation of odd-numbered fatty acids produces acetyl-CoA and _______________.

The hormone induces lipolysis, whereas the hormone inhibits the process.