11-22-2011, 04:09 AM
6. The product of the fatty acid synthase complex in the liver can be
a. Elongated to steric acid
b. Reduced to form oleic acid
c. Oxidized directly to palmitic acid
d. Converted to arachidonic acid
e. Converted to low density lipoproteins and secreted into the blood
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7. In the conversion of cholesterol to bile salts
a. Carbon 8 is hydroxylated
b. The side chain is oxidized and can be conjugated with serine or taurine
c. Double bond is reduced
d. Hydroxyl group on carbon 3 remains in the Beta position
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8. Which of the following statements about the conversion of fatty acids to ketone bodies is True?
a. Carnitine transports the fatty acid across the plasma membrane
b. Activation of the fatty acid is driven by the conversion of ATP to ADP
c. Thiolase cleaves HMG CoA
d. Acetoacetate and acetyl CoA are produced by cleavage of HMG CoA
e. The complete sequence of reactions occurs in all tissues of the body.
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9. Newly synthesized fatty acids are not immediately degraded because
a. Tissues that synthesize fatty acids do not contain enzymes that degrade fatty acids
b. High NADPH levels inhibit Beta Oxidation
c. Transport of fatty acids into mitochondria is inhibited under conditions in which fatty acids are being synthesized.
d. In the presence of insulin, the key fatty acid degrading enzyme is not included
e. Newly synthesized fatty acids cannot be converted to their CoA derivatives.
......................................
10. .Which one of the following characteristics of phospholipids is True?
a. They always contain choline and glycerol
b. They are important source of energy during fasting
c. They are a major component of membranes
d. They are not charged in the body
e. They are not soluble in water
a. Elongated to steric acid
b. Reduced to form oleic acid
c. Oxidized directly to palmitic acid
d. Converted to arachidonic acid
e. Converted to low density lipoproteins and secreted into the blood
...................................
7. In the conversion of cholesterol to bile salts
a. Carbon 8 is hydroxylated
b. The side chain is oxidized and can be conjugated with serine or taurine
c. Double bond is reduced
d. Hydroxyl group on carbon 3 remains in the Beta position
..................................
8. Which of the following statements about the conversion of fatty acids to ketone bodies is True?
a. Carnitine transports the fatty acid across the plasma membrane
b. Activation of the fatty acid is driven by the conversion of ATP to ADP
c. Thiolase cleaves HMG CoA
d. Acetoacetate and acetyl CoA are produced by cleavage of HMG CoA
e. The complete sequence of reactions occurs in all tissues of the body.
............................................
9. Newly synthesized fatty acids are not immediately degraded because
a. Tissues that synthesize fatty acids do not contain enzymes that degrade fatty acids
b. High NADPH levels inhibit Beta Oxidation
c. Transport of fatty acids into mitochondria is inhibited under conditions in which fatty acids are being synthesized.
d. In the presence of insulin, the key fatty acid degrading enzyme is not included
e. Newly synthesized fatty acids cannot be converted to their CoA derivatives.
......................................
10. .Which one of the following characteristics of phospholipids is True?
a. They always contain choline and glycerol
b. They are important source of energy during fasting
c. They are a major component of membranes
d. They are not charged in the body
e. They are not soluble in water