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When a fatty acid is converted to a fatty acyl CoA:

A. ADP is converted to ATP

B. ATP is converted to ADP

C. The intermediate is an acyl adenylate

D. An ether bond is formed

E. The CoA is derived from succinyl CoA

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Trinidad Tremblay
Trinidad TremblayLv2
28 Sep 2019

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Related questions

30. In final step of the triacylglycerol biosynthesis, which of the following is added to the diacylglycerol?

A. Acetyl-CoA

B. Phosphatidic acid

C. Fatty acyl-CoA

D. Glycerol-3-P

31. The activation of long chain fatty acids requires which of the following?

A. 2 ATPs

B. 2 ATPs and Co-A

C. 2 ATP, CoA and fatty-acyl CoA

D. 2 ATPs and a fatty acid.

32. What is the metabolic pathway that does not involve succinyl-CoA?

A. Ketone bodies to acetyl CoA

B. Odd chain fatty acid oxidation

C. Even chain fatty acid oxidation

D. TCA cycle

33. In order to break down fatty acids, they are first transported into the mitochondrial matrix by conversion of the fatty acid from a covalent complex with CoA to one with:

A. Citrate.

B. Oxaloacetate.

C. Malate.

D. Carnitine.

E. Pyruvate.

34. Regarding carnitine shuttle, the enzyme translocase involves which of the following pair?

A. Fatty acyl & CoA

B. Fatty acyl-carnitine & carnitine

C. Fatty acyl CoA & carnitine

D. Fatty acyl & carnitine

35. The family of drugs that are called "statins" (e.g. lipitor) are effective at lowering plasma levels of cholesterol because they:

A. slow the rate of cholesterol uptake from plasma into the cell.

B. increase the rate of synthesis of cholesterol inside the cell.

C. inhibit the activity of a key enzyme in the cholesterol synthetic pathway.

D. prevent the synthesis of Mevalonate

6. During fasting the liver pyruvate kinase enzyme is :

A. inhibited by phosphorylation by PKA

B. activated by phosphorylation by PKA

C. located in the mitochondria

D. activated by ATP

_______7. Phosphorylation of glycogen phosphorylase kinase by PKA in the liver:

A. activates of glycogen synthase

B. inactivates of glycogen synthase

C. inactivates of glycogen phosphorylase kinase

D. activates of glycogen phosphorylase kinase

_____8. In the skeletal muscle when a football player runs sprints during practice, the NADH produced in glycolysis at the glyceraldehydes 3-phosphate step is re-oxidized primarily by:

A. Malate dehydrogenase

B. Lactate dehydrogenase

C. Pyruvate dehydrogenase

D. Isocitrate dehydrogenase

_____9. Which of the following compounds is an allosteric activator of pyruvate carboxylase?

A. Biotin

B. Acetyl CoA

C. NADH

D. insulin

______10. Fatty acids with an odd number of carbon atoms and certain branched-chain fatty acids can support the net synthesis of glucose because they:

A. are converted to acetoacetate and β-hydroxybutyrate

B. are converted to malonyl-CoA

C. can produce propionyl-CoA which is converted to succinyl-CoA

D. Increase the NAD/NADH ratio

You have a 30-Carbon fatty acid that will be oxidized in the Krebs cycle. It takes 1 ATP to initiate the process.

How many ATPs will be used to degrade the fatty acid to glycerol and a free fatty acid and the formation of fatty Acly-CoA?

How many FAD will be generated from the oxidation, two carbons at a time, of the fatty acly-CoA? How many NADH? How many acetyl-CoA?

How many NADH will be generated during the Krebs cycle? How many FAD? How many ATP?

How many TOTAL ATPs will be generated from the beta oxidation of this one fatty acid? Of the three fatty acid chains?

What is the NET gain of ATPs from the oxidation of one 24-C fatty acid? Three 24-C fatty acid?

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