Lipid – Section 1

1. The key enzyme in the regulation of fatty acid synthesis is

A. acetyl CoA carboxylase
B. AMP activated protein kinase
C. protein phosphatase
D. none of these

Correct Answer: A. acetyl CoA carboxylase

2. Arachidonate has 20 carbon atoms with

A. 3 double bonds
B. 2 double bonds
C. 4 double bonds
D. 8 double bonds

Correct Answer: C. 4 double bonds

3. In the intestine, the dietary fats are hydrolyzed by

A. triacylglycerol lipase
B. adenylate cyclase
C. pancreatic lipase
D. protein kinase

Correct Answer: C. pancreatic lipase

4. HDLs are synthesized in

A. blood
B. liver
C. intestine
D. pancreas

Correct Answer: B. liver

5. Triacylglycerols are

A. soluble in water
B. insoluble in water
C. soluble in water at elevated temperature
D. partially soluble in water

Correct Answer: B. insoluble in water

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