source Day 40 – Lesson 24 – PG NEET Biochemistry MCQs 24 – Lipid

  1. Transport of fatty acids by carnitine across mitochondria is inhibited by
    1. Palmityl COA
    2. CAMP
    3. Malonyl COA
    4. Glucagon
      1. Ans(3)
  2. The rate-limiting step in the fatty acid synthesis is;
    1.  Production of Acetyl CoA
    2. Production of oxaloacetate
    3. Production of malonyl CoA
    4. Production of citrate
      1. Ans(3)
  3. Refsum disease is due to defect in
    1. Phytanic acid lyase
    2. Phytanic acid reductase
    3. Phytanic acid oxidase
    4. Phytanic  acid isomerase
      1. Ans(3)
  4. Oxidation of very long chain fatty acids takes place in
    1. Cytosol
    2. Mitochondria
    3. Ribosomes
    4. peroxisomes
      1. Ans(4)
  5. In case of Carnitine deficiency, there will be increased levels of
    1. Acetate
    2. Citrate
    3. Beta-hydroxybutyrate
    4. Lactate
      1. Ans(3)
  6. Fatty acid elongation occurs in which part of a cell
    1. Cytosol
    2. Endoplasmic reticulum
    3. Lysosome
    4. Nucleus
      1. Ans(2)
  7. True regarding medium chain fatty acids
    1. Don’t require pancreatic lipase
    2. Diffuse directly into the portal circulation
    3. Not deposited in adipose tissue
    4. All of the above
      1. Ans(4)
  8. Major metabolism of saturated fatty acids in the mitochondria is called as
    1. β – oxidation
    2. α – oxidation
    3. ω- oxidation
    4. None of the above
      1. Ans(1)
  9. Auto-oxidation is seen in
    1. Cholesterol
    2. Arachidonic acid
    3. Stearic acid
    4. Palmitic acid
      1. Ans(2)
  10. Beta oxidation of very long chain fatty acids occurs
    1. Cytoplasm
    2. Endoplasmic reticulum
    3. Lysosome
    4. Peroxisomes
      1. Ans(4)
  11. Alpha oxidation of fatty acid takes place in
    1. endoplasmic reticulum
    2. Golgi apparatus
    3. Mitochondria
    4. Peroxisomes
      1. Ans(1)
  12. An endpoint of fatty acid synthesis is the formation of
    1. palmitic acid
    2. stearic acid
    3. oleic acid
    4. linoleic acid
      1. Ans(2)
  13. Net ATP’s yield by one true of palmitic acid oxidation is
    1. 2
    2. 8
    3. 106
    4. 129
      1. Ans(3)
  14. The allosteric inhibitor of fatty acid synthase is:
    1. citrate
    2. long chain acyl CoA
    3. ATP
    4. NAD
      1. Ans(4)
  15. Allosteric activator of  Acetyl CoA carboxylase is
    1. Malonyl CoA
    2. Acetyl CoA
    3. Citrate
    4. Biotin
      1. Ans(3)
  16. Number of ATP molecules formed by complete oxidation of palmitic acid
    1. 94
    2. 106
    3. `122
    4. 157
      1. Ans(2)
  17. Which biochemical reaction does not occur in the mitochondria?
    1. Kerb’s cycle
    2. Urea cycle
    3. Gluconeogenesis
    4. fatty acid synthesis
      1. Ans(4)
  18. Epinephrine increases free fatty acid level by causing
    1. Increased fatty acid synthesis
    2. increasing lipolysis
    3. Increasing cholesterol catabolism
    4. All of the above
      1. Ans(2)
  19. In the synthesis of fatty acids, energy is supplied by
    1. NAD
    2. FAD
    3. GTP
    4. NADPH
      1. Ans(4)
  20. Ketone body production occurs in;
    1. Cytoplasm
    2. Mitochondria
    3. Golgi body
    4. Nucleus
      1. Ans(2)
  21. All paricipate in fatty acid synthesis except;
    1. Hydratase
    2. Reductase
    3. Transacylase
    4. dehydrogenase
      1. Ans(4)
  22. First formed ketone body
    1. Acetone
    2. Acetoacetate
    3. Beta-hydroxybutyrate
    4. All of the above
      1. Ans(2)
  23. β oxidation of odd-chain fatty produces
    1.  Succinyl CoA
    2. Propionyl CoA
    3. Acetyl CoA
    4. Malonyl CoA
      1. Ans(2)
  24. Primary ketone body is:
    1. Acetoacetate
    2. Acetone
    3. Beta-hydroxybutyrate
    4. All of the above
      1. Ans(1)
  25. Fatty acids are transported by
    1. Albumin
    2. Globulin
    3. VLDL
    4. Chylomicrons
      1. Ans(1)
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