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MCQs

Total Questions : 29 | Page 1 of 3 pages
Question 1.  The key enzyme in the regulation of fatty acid synthesis is
  1.    acetyl CoA carboxylase
  2.    AMP activated proteinkinase
  3.    protein phosphatase
  4.    none of these
 Discuss Question
Answer: Option A. -> acetyl CoA carboxylase
Question 2.  In eukaryotes fatty acid breakdown occurs in
  1.    mitochondrial matrix
  2.    cytosol
  3.    cell membrane
  4.    endoplasmic reticulum
 Discuss Question
Answer: Option A. -> mitochondrial matrix
Question 3.  In the intestine, the dietary fats are hydrolysed by
  1.    triacylglycerol lipase
  2.    adenylate cyclase
  3.    pancreatic lipase
  4.    protein kinase
 Discuss Question
Answer: Option C. -> pancreatic lipase
Question 4.  Triacylglycerols are
  1.    soluble in water
  2.    insoluble in water
  3.    soluble in water at elevated temperature
  4.    partially soluble in water
 Discuss Question
Answer: Option B. -> insoluble in water
Question 5.  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 6.  Animals cannot convert fatty acids into glucose because
  1.    acetyl CoA can not be converted to pyruvate
  2.    absence of malate synthase
  3.    absence of dehydrogenase
  4.    absence of a-ketoglutarate dehydrogenase
 Discuss Question
Answer: Option A. -> acetyl CoA can not be converted to pyruvate
Question 7.  HDLs are synthesized in
  1.    blood
  2.    liver
  3.    intestine
  4.    pancreas
 Discuss Question
Answer: Option B. -> liver
Question 8.  Phospholipid contains
  1.    hydrophilic heads and hydrophobic tails
  2.    long water-soluble carbon chains
  3.    positively charged functional groups
  4.    both (b) and (c)
 Discuss Question
Answer: Option A. -> hydrophilic heads and hydrophobic tails
Question 9.  What is the major protein constituent of high-density lipoprotein (HDL)?
  1.    Apolipoprotein A-l
  2.    Apolipoprotein C-l
  3.    Apolipoprotein E
  4.    None of these
 Discuss Question
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
  1.    carboxylic acid groups, hydrocarbon chains heads
  2.    hydrophilic heads, hydrophobic tails
  3.    hydrocarbon chains, carboxylic acid groups
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)

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