Lipid problems
- 1. Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior
Options- A. carboxylic acid groups, hydrocarbon chains heads
- B. hydrophilic heads, hydrophobic tails
- C. hydrocarbon chains, carboxylic acid groups
- D. both (a) and (b) Discuss
Correct Answer: both (a) and (b)
- 2. VLDLs are synthesized in
Options- A. blood
- B. liver
- C. intestine
- D. pancreas Discuss
Correct Answer: liver
- 3. Animals cannot convert fatty acids into glucose because
Options- A. acetyl CoA can not be converted to pyruvate
- B. absence of malate synthase
- C. absence of dehydrogenase
- D. absence of a-ketoglutarate dehydrogenase Discuss
Correct Answer: acetyl CoA can not be converted to pyruvate
- 4. In the intestine, the dietary fats are hydrolysed by
Options- A. triacylglycerol lipase
- B. adenylate cyclase
- C. pancreatic lipase
- D. protein kinase Discuss
Correct Answer: pancreatic lipase
- 5. Atherosclerosis can cause blood
Options- A. thinning
- B. clotting
- C. thickening
- D. none of these Discuss
Correct Answer: clotting
- 6. Arachidonate has 20 carbon atoms with
Options- A. 3 double bonds
- B. 2 double bonds
- C. 4 double bonds
- D. 8 double bonds Discuss
Correct Answer: 4 double bonds
- 7. How many types of lipoproteins are there?
Options- A. 2
- B. 6
- C. 8
- D. 5 Discuss
Correct Answer: 5
- 8. What is the major protein constituent of high-density lipoprotein (HDL)?
Options- A. Apolipoprotein A-l
- B. Apolipoprotein C-l
- C. Apolipoprotein E
- D. None of these Discuss
Correct Answer: Apolipoprotein A-l
- 9. The key enzyme in the regulation of fatty acid synthesis is
Options- A. acetyl CoA carboxylase
- B. AMP activated proteinkinase
- C. protein phosphatase
- D. none of these Discuss
Correct Answer: acetyl CoA carboxylase
- 10. Fatty acids break down of eukaryotes occurs in
Options- A. mitochondrial matrix
- B. cell membrane
- C. cytosol
- D. endoplasmic reticulum Discuss
Correct Answer: mitochondrial matrix
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