Question 1

Consider the following reaction.  
What would be the nitrogen containing product?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D) 
  C

Question 2

Unlike amino acids and sugars,lipids are transported to the liver after initially passing through ____.

Accepted Answer

A)  an artery 
B)  the lymph system 
C)  the adipose tissue 
D)  the respiratory system 
A)  an artery 
B)  the lymph system 
C)  the adipose tissue 
D)  the respiratory system B

Question 3

The entire urea cycle occurs within the matrix of the mitochondria.

Accepted Answer

A) True 
 B)False  False

Question 4

Glycogen that is required by brain tissue leaves the liver and is transported to the brain by means of large blood vessels used specifically for this purpose.

Accepted Answer

A) True 
 B)False

Question 5

The liver is the most important site for the biosynthesis of fatty acids and triglycerides.

Accepted Answer

A) True 
 B)False

Question 6

The density of a lipoprotein increases as the _____ content increases.

Accepted Answer

A)  protein 
B)  triglycerides 
C)  phospholipids 
D)  cholesterol 
A)  protein 
B)  triglycerides 
C)  phospholipids 
D)  cholesterol

Question 7

The processes of fatty acid degradation and fatty acid synthesis are the chemical reverse of each other and respond to stress as predicted by Le Châtelier's principle.

Accepted Answer

A) True 
 B)False

Question 8

High concentrations of ketone bodies in the blood

Accepted Answer

A)  cause diabetes mellitus. 
B)  are a symptom of starvation. 
C)  increase the pH of the blood. 
D)  More than one response is correct. 
A)  cause diabetes mellitus. 
B)  are a symptom of starvation. 
C)  increase the pH of the blood. 
D)  More than one response is correct.

Question 9

Consider the reaction below.Which of the following substances should be placed by the labels 1 and 2,respectively?

Accepted Answer

A)  1: ATP and 2: ADP + Pi 
B)  1: ATP and 2: AMP + PiPi  
C)  1: NAD+ and 2: NADH + H+ 
D)  1: FAD and 2: FADH2  
A)  1: ATP and 2: ADP + Pi 
B)  1: ATP and 2: AMP + PiPi  
C)  1: NAD+ and 2: NADH + H+ 
D)  1: FAD and 2: FADH2

Question 10

Transaminases play a role in amino acid synthesis as well as in nitrogen disposal.

Accepted Answer

A) True 
 B)False

Question 11

Given the chance,a few long exercise periods will burn off more fat than will many short periods.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following substances is not considered one of the ketone bodies?

Accepted Answer

A)  methyl ethyl ketone 
B)  acetone 
C)  acetoacetate 
D)  ($\beta$-hydroxybutyrate) 
A)  methyl ethyl ketone 
B)  acetone 
C)  acetoacetate 
D)  ($\beta$-hydroxybutyrate)

Question 13

Complete $\beta$-oxidation of a 12-carbon fatty acid produces ____ molecules of FADH2.

Accepted Answer

A)  5 
B)  6 
C)  8 
D)  12 
A)  5 
B)  6 
C)  8 
D)  12

Question 14

If an individual does not have a sufficient level of insulin in the blood,the uptake of glucose by the cells is inhibited.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following processes is important when new amino acids are synthesized in the body?

Accepted Answer

A)  deamination 
B)  transamination 
C)  the urea cycle 
D)  phosphorylation 
A)  deamination 
B)  transamination 
C)  the urea cycle 
D)  phosphorylation

Question 16

What is the effect on acetoacetate blood concentration as weeks without food increases?

Accepted Answer

A)  increases 
B)  no effect 
C)  decreases 
D)  not enough information 
A)  increases 
B)  no effect 
C)  decreases 
D)  not enough information

Question 17

The amino acid pool is the total cellular supply of

Accepted Answer

A)  amino acids. 
B)  dipeptides that yield amino acids. 
C)  proteins that yield amino acids. 
D)  More than one response is correct. 
A)  amino acids. 
B)  dipeptides that yield amino acids. 
C)  proteins that yield amino acids. 
D)  More than one response is correct.

Question 18

Bile serves what function?

Accepted Answer

A)  conversion of triglycerides to monoglycerides and fatty acids 
B)  protein degradation 
C)  hydrolysis of carbohydrates,fats and proteins 
D)  break apart fat globules 
A)  conversion of triglycerides to monoglycerides and fatty acids 
B)  protein degradation 
C)  hydrolysis of carbohydrates,fats and proteins 
D)  break apart fat globules

Question 19

Which of these is a direct fuel for the urea cycle?

Accepted Answer

A) 
  
B)  glutamate 
C)  carbamoyl phosphate 
D)  pyruvate 
A) 
  
B)  glutamate 
C)  carbamoyl phosphate 
D)  pyruvate

Question 20

The accumulation of ketone bodies in the blood is termed _____ .

Accepted Answer

A)  acidosis 
B)  alkalosis 
C)  ketonuria 
D)  ketonemia 
A)  acidosis 
B)  alkalosis 
C)  ketonuria 
D)  ketonemia

Exam 24: Lipid and Amino Acid Metabolism

Consider the following reaction. What would be the nitrogen containing product?

Unlike amino acids and sugars,lipids are transported to the liver after initially passing through ____.

The entire urea cycle occurs within the matrix of the mitochondria.

Glycogen that is required by brain tissue leaves the liver and is transported to the brain by means of large blood vessels used specifically for this purpose.

The liver is the most important site for the biosynthesis of fatty acids and triglycerides.

The density of a lipoprotein increases as the _____ content increases.

The processes of fatty acid degradation and fatty acid synthesis are the chemical reverse of each other and respond to stress as predicted by Le Châtelier's principle.

High concentrations of ketone bodies in the blood

Consider the reaction below.Which of the following substances should be placed by the labels 1 and 2,respectively?

Transaminases play a role in amino acid synthesis as well as in nitrogen disposal.

Given the chance,a few long exercise periods will burn off more fat than will many short periods.

Which of the following substances is not considered one of the ketone bodies?

Complete β\betaβ -oxidation of a 12-carbon fatty acid produces ____ molecules of FADH2.

If an individual does not have a sufficient level of insulin in the blood,the uptake of glucose by the cells is inhibited.

Which of the following processes is important when new amino acids are synthesized in the body?

What is the effect on acetoacetate blood concentration as weeks without food increases?

The amino acid pool is the total cellular supply of

Bile serves what function?

Which of these is a direct fuel for the urea cycle?

The accumulation of ketone bodies in the blood is termed _____ .

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Body Fluids

Filters

Complete $\beta$ -oxidation of a 12-carbon fatty acid produces ____ molecules of FADH₂.