Question 1. The key enzyme in the regulation of fatty acid synthesis is
acetyl CoA carboxylase
AMP activated proteinkinase
protein phosphatase
none of these
Explanation:-
Answer: Option A. -> acetyl CoA carboxylase
Question 2. In eukaryotes fatty acid breakdown occurs in
mitochondrial matrix
cytosol
cell membrane
endoplasmic reticulum
Explanation:-
Answer: Option A. -> mitochondrial matrix
Question 3. In the intestine, the dietary fats are hydrolysed by
triacylglycerol lipase
adenylate cyclase
pancreatic lipase
protein kinase
Explanation:-
Answer: Option C. -> pancreatic lipase
Question 4. Triacylglycerols are
soluble in water
insoluble in water
soluble in water at elevated temperature
partially soluble in water
Explanation:-
Answer: Option B. -> insoluble in water
Question 5. Arachidonate has 20 carbon atoms with
3 double bonds
2 double bonds
4 double bonds
8 double bonds
Explanation:-
Answer: Option C. -> 4 double bonds
Question 6. Animals cannot convert fatty acids into glucose because
acetyl CoA can not be converted to pyruvate
absence of malate synthase
absence of dehydrogenase
absence of a-ketoglutarate dehydrogenase
Explanation:-
Answer: Option A. -> acetyl CoA can not be converted to pyruvate
Question 7. HDLs are synthesized in
blood
liver
intestine
pancreas
Explanation:-
Answer: Option B. -> liver
Question 8. Phospholipid contains
hydrophilic heads and hydrophobic tails
long water-soluble carbon chains
positively charged functional groups
both (b) and (c)
Explanation:-
Answer: Option A. -> hydrophilic heads and hydrophobic tails
Question 9. What is the major protein constituent of high-density lipoprotein (HDL)?
Apolipoprotein A-l
Apolipoprotein C-l
Apolipoprotein E
None of these
Explanation:-
Answer: Option A. -> Apolipoprotein A-l
Question 10. . Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior
