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MCQs

Total Questions : 25 | Page 1 of 3 pages
Question 1. The key enzyme in the regulation of fatty acid synthesis is
  1.    acetyl CoA carboxylase
  2.    none of these
  3.    AMP activated proteinkinase
  4.    protein phosphatase
 Discuss Question
Answer: Option A. -> acetyl CoA carboxylase
Question 2. HDLs are synthesized in
  1.    intestine
  2.    liver
  3.    pancreas
  4.    blood
 Discuss Question
Answer: Option B. -> liver
Question 3. Triacylglycerols are
  1.    partially soluble in water
  2.    soluble in water
  3.    insoluble in water
  4.    soluble in water at elevated temperature
 Discuss Question
Answer: Option C. -> insoluble in water
Question 4. Arachidonate has 20 carbon atoms with
  1.    3 double bonds
  2.    2 double bonds
  3.    4 double bonds
  4.    8 double bonds
 Discuss Question
Answer: Option C. -> 4 double bonds
Question 5. In the intestine, the dietary fats are hydrolysed by
  1.    pancreatic lipase
  2.    protein kinase
  3.    triacylglycerol lipase
  4.    adenylate cyclase
 Discuss Question
Answer: Option A. -> pancreatic lipase
Question 6. Animals cannot convert fatty acids into glucose because
  1.    absence of malate synthase
  2.    absence of dehydrogenase
  3.    absence of a-ketoglutarate dehydrogenase
  4.    acetyl CoA can not be converted to pyruvate
 Discuss Question
Answer: Option D. -> acetyl CoA can not be converted to pyruvate
Question 7. Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior
  1.    hydrophilic heads, hydrophobic tails
  2.    hydrocarbon chains, carboxylic acid groups
  3.    carboxylic acid groups, hydrocarbon chains heads
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)
Question 8. What is the major protein constituent of high-density lipoprotein (HDL)?
  1.    None of these
  2.    Apolipoprotein E
  3.    Apolipoprotein A-l
  4.    Apolipoprotein C-l
 Discuss Question
Answer: Option C. -> Apolipoprotein A-l
Question 9. In eukaryotes fatty acid breakdown occurs in
  1.    endoplasmic reticulum
  2.    cell membrane
  3.    cytosol
  4.    mitochondrial matrix
 Discuss Question
Answer: Option D. -> mitochondrial matrix
Question 10. Phospholipid contains
  1.    long water-soluble carbon chains
  2.    positively charged functional groups
  3.    hydrophilic heads and hydrophobic tails
  4.    both (b) and (c)
 Discuss Question
Answer: Option C. -> hydrophilic heads and hydrophobic tails

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