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

  1. The reaction: Acetoacetah + succinyl CoA → Acetoacetate succinate  occurs in all of the following Except;
    1. Brain
    2. Striated Muscle
    3. Liver
    4. Cardiac muscle
      1. Ans(3)
  2. Hydrogenation of fatty acid is
    1. Hydrolysis by Alkali
    2. Auto-oxidation of PUFA
    3. Addition of hydrogen to unsaturated fatty acid
    4. addition of hydrogen to saturated fatty acid
      1. Ans(3)
  3. Heart uses one of the following as energy source during starvation
    1. Glucose
    2. Acetoacetate
    3. Fats
    4. Proteins
      1. Ans(2)
  4. A method used to separate a mixture of lipids
    1. Electrophoresis
    2. Chromatography
    3. Isoelectric focusing
    4. PAGE
      1. Ans(2)
  5. Omega 3 fatty acid among the following is;
    1. Linoleic acid
    2. Alpha Linolenic acid
    3. Oleic acid
    4. Arachidonic acid
      1. Ans(2)
  6. Rate limiting step in cholesterol synthesis is mediated by
    1. Acetyl CoA Carboxylase
    2. Acetyl CoA reductase
    3. HMG CoA synthetase
    4. HMG CoA reductase
      1. Ans(4)
  7. Arachidonic acid is synthesized from
    1. Linolenic acid
    2. linoleic acid
    3. Prostaglandins
    4. Oleic acid
      1. Ans(2)
  8. “Squalene” is the intermediate product during synthesis of
    1. VLDL
    2. Cholesterol
    3. Tachysterol
    4. Lanosterol
      1. Ans(2)
  9. Sphingosine is derived from
    1. Oleic acid & leucine
    2. Arachidonic acid & leucine
    3. Methionine & serine
    4. Palmitoyl CoA serine
      1. Ans(4)
  10. The Rate-limiting step in cholesterol synthesis
    1. Beta hydroxyl methyl glutaryl COA →Malonyl COA→ Mevalonic acid
    2. Acetyl COA +CO2 +ATP →Malonyl COA
    3. L Methyl malonyl COA → Succinyl COA
    4. Lactose +H2O→glucose +Galacto
      1. Ans(1)
  11. Essential fatty acids are all except
    1. Arachidonic acid
    2. Linoleic acid
    3. Palmitic acid
    4. alpha-linolenic acids
      1. Ans(3)
  12. Mineral required for cholesterol biosynthesis
    1. Fe
    2. Mn
    3. Mg
    4. Cu
      1. Ans(3)
  13. Which among the following is a cardo – protective fatty acids:
    1. Palmitic acids
    2. stearic acid
    3. Oleic acid
    4. Omega 3 fatty acids
      1. Ans(4)
  14. Cholesterol is not a precursor for the synthesis of
    1. Vitamin D
    2. progesterone
    3. Bile acids
    4. Lipocortin
      1. Ans(4)
  15. Maximum source of linoleic acid is;
    1. Coconut oil
    2. sunflower oil
    3. palm oil
    4. vanaspati
      1. Ans(3)
  16. Bile acids are synthesized from
    1. Arachidonic acids
    2. Acetyl COA
    3. Linolenic acid
    4. Linoleic acid
      1. Ans(2)
  17. The following fatty acids do not belong to ω6 series
    1. linoleic acid
    2. arachidonic acid
    3. gamma linolenic acid
    4. Alpha-linolenic acid
      1. Ans(4)
  18. Rate limiting enzyme in bile acid synthesis
    1. HMG -COA
    2. HMG COA synthase
    3. 7 -α hydroxylase
    4. Sterol 27 hydroxylase
      1. Ans(2)
  19. Which of the following is not a glycosphingolipid?
    1. Lecithin
    2. Cardiolipin
    3. Plasmalogens
    4. Sphingomyelin
      1. Ans(4)
  20. Rate limiting enzyme in fatty acid synthesis is:
    1. Acetyl CoA carboxylase
    2. Acetyl CoA reductase
    3. HMG CoA  synthetase
    4. HMG CoA reductase
      1. Ans(1)
  21. The most essential fatty acid is
    1. Linoleic acid
    2. Linolenic acid
    3. arachidonic acid
    4. Palmitic acid
      1. Ans(1)
  22. True regarding fatty acid synthesis are all except;
    1. Occurs completely in mitochondria
    2. NADPH acts as the cofactor
    3. Acetyl CoA  carboxylase is the rate-limiting enzyme
    4. Acetyl CoA is the primer
      1. Ans(1)
  23. Which of the following reaction is due to lipid peroxidation?
    1. Saponification
    2. Rancidity
    3. Hydrogenation
    4. Soap formation
      1. Ans(2)
  24. Structure of triglyceride is:
    1. 2 molecules of FA + Glycerol
    2. 3 molecules of FA + Glycerol
    3. 2 molecules of FA + 2,3 DPG
    4. 3 molecules of FA + 2,3 DPG
      1. Ans(2)
  25. a defect in fatty acid oxidation during starvation causes
    1. Ketosis
    2. Hypoglycemia
    3. Lactic acidosis
    4. Defective glycolysis
      1. Ans(2)
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