Question 1

In the fatty acid synthetase system,acetyl CoA is converted back into a fatty acid.How many ATPs are used in making a 10 carbon fatty acid?

Accepted Answer

A)  10 
B)  8 
C)  6 
D)  4 
A)  10 
B)  8 
C)  6 
D)  4

Question 2

Consider the diagram of a mitochondrion shown below.Which of the numbered locations is where $\beta$-oxidation occurs?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 3

Two of the ketone bodies are _____ .

Accepted Answer

A)  acidic 
B)  neutral 
C)  basic 
D)  basic or acidic 
A)  acidic 
B)  neutral 
C)  basic 
D)  basic or acidic

Question 4

Which of the following is a ketone body?

Accepted Answer

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

Question 5

The synthesis of amino acids and the intake of amino acids are both important in order to replace cells lost from cellular death caused by either old age of the cells or disease.

Accepted Answer

A) True 
 B)False

Question 6

In the fatty acid synthetase system,acetyl CoA is converted back into a fatty acid.How many acetyl CoAs are used in making a 18 carbon fatty acid?

Accepted Answer

A)  10 
B)  9 
C)  18 
D)  36 
A)  10 
B)  9 
C)  18 
D)  36

Question 7

Amino acids that are degraded into ____ are termed glucogenic amino acids.

Accepted Answer

A)  acetyl CoA 
B)  acetoacetyl CoA 
C)  pyruvate 
D)  aspartate 
A)  acetyl CoA 
B)  acetoacetyl CoA 
C)  pyruvate 
D)  aspartate

Question 8

In PKU disease,an enzyme is lacking which converts

Accepted Answer

A)  alanine to serine. 
B)  tryptophan to tyrosine. 
C)  phenylalanine to tyrosine. 
D)  alanine to phenylalanine. 
A)  alanine to serine. 
B)  tryptophan to tyrosine. 
C)  phenylalanine to tyrosine. 
D)  alanine to phenylalanine.

Question 9

If there is an excessive intake of fatty acids and/or carbohydrates,the energy is stored as triglycerides for later use.

Accepted Answer

A) True 
 B)False

Question 10

A chylomicron is a type of lipoprotein,produced from using fat in digested food.

Accepted Answer

A) True 
 B)False

Question 11

Since studies have shown that omega-3 fatty acids provide a wide range of health benefits,persons should consume a much of them as possible each day.

Accepted Answer

A) True 
 B)False

Question 12

Chylomicrons are modified within the ____ into smaller lipoprotein particles.

Accepted Answer

A)  liver 
B)  bloodstream 
C)  intestinal mucosa 
D)  lymph 
A)  liver 
B)  bloodstream 
C)  intestinal mucosa 
D)  lymph

Question 13

Activation of a fatty acid prior to its entry into the fatty acid spiral requires the presence of _____ .

Accepted Answer

A)  FAD 
B)  malonyl CoA 
C)  cyclic AMP 
D)  ATP 
A)  FAD 
B)  malonyl CoA 
C)  cyclic AMP 
D)  ATP

Question 14

Ketogenic amino acids cannot be converted into _____ .

Accepted Answer

A)  fatty acids 
B)  glucose 
C)  ketone bodies 
D)  acetyl CoA 
A)  fatty acids 
B)  glucose 
C)  ketone bodies 
D)  acetyl CoA

Question 15

While the brain cannot use fatty acids as an energy source due to the blood-brain barrier,red blood cell cannot use fatty acids because they lack mitochondria.

Accepted Answer

A) True 
 B)False

Question 16

Identify the beta carbon in the following diagram.

Accepted Answer

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

Question 17

The following reaction would occur during fat mobilization.

Accepted Answer

A) True 
 B)False

Question 18

Chylomicrons are aggregates of triglycerides,phosphoglycerides,and cholesterol complexed with proteins.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following types of proteins tend to have the highest turnover rate in the body?

Accepted Answer

A)  enzymes 
B)  plasma proteins 
C)  connective tissue proteins 
D)  muscle protein 
A)  enzymes 
B)  plasma proteins 
C)  connective tissue proteins 
D)  muscle protein

Question 20

How many molecules of NADH are formed by the oxidation of a 6-carbon fatty acid?

Accepted Answer

A)  6 
B)  5 
C)  3 
D)  2 
A)  6 
B)  5 
C)  3 
D)  2

Exam 24: Lipid and Amino Acid Metabolism

In the fatty acid synthetase system,acetyl CoA is converted back into a fatty acid.How many ATPs are used in making a 10 carbon fatty acid?

Consider the diagram of a mitochondrion shown below.Which of the numbered locations is where β\betaβ -oxidation occurs?

Two of the ketone bodies are _____ .

Which of the following is a ketone body?

The synthesis of amino acids and the intake of amino acids are both important in order to replace cells lost from cellular death caused by either old age of the cells or disease.

In the fatty acid synthetase system,acetyl CoA is converted back into a fatty acid.How many acetyl CoAs are used in making a 18 carbon fatty acid?

Amino acids that are degraded into ____ are termed glucogenic amino acids.

In PKU disease,an enzyme is lacking which converts

If there is an excessive intake of fatty acids and/or carbohydrates,the energy is stored as triglycerides for later use.

A chylomicron is a type of lipoprotein,produced from using fat in digested food.

Since studies have shown that omega-3 fatty acids provide a wide range of health benefits,persons should consume a much of them as possible each day.

Chylomicrons are modified within the ____ into smaller lipoprotein particles.

Activation of a fatty acid prior to its entry into the fatty acid spiral requires the presence of _____ .

Ketogenic amino acids cannot be converted into _____ .

While the brain cannot use fatty acids as an energy source due to the blood-brain barrier,red blood cell cannot use fatty acids because they lack mitochondria.

Identify the beta carbon in the following diagram.

The following reaction would occur during fat mobilization.

Chylomicrons are aggregates of triglycerides,phosphoglycerides,and cholesterol complexed with proteins.

Which of the following types of proteins tend to have the highest turnover rate in the body?

How many molecules of NADH are formed by the oxidation of a 6-carbon fatty acid?

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

Consider the diagram of a mitochondrion shown below.Which of the numbered locations is where $\beta$ -oxidation occurs? $Consider the diagram of a mitochondrion shown below.Which of the numbered locations is where \beta -oxidation occurs?$