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MCQs

Total Questions : 154 | Page 4 of 16 pages
Question 31. Semipermeable membrane allows ____________
  1.    Solute to pass
  2.    Solution to pass
  3.    Solvent to pass
  4.    Proteins to pass
 Discuss Question
Answer: Option C. -> Solvent to pass
Answer: (c).Solvent to pass
Question 32. Which of the following is energy independent?
  1.    Active transport
  2.    Primary active transport
  3.    Secondary active transport
  4.    Passive transport
 Discuss Question
Answer: Option D. -> Passive transport
Answer: (d).Passive transport
Question 33. In which of the following means of transport a cell expels large molecules out of it?
  1.    Phagocytosis
  2.    Exocytosis
  3.    Endocytosis
  4.    Diffusion
 Discuss Question
Answer: Option B. -> Exocytosis
Answer: (b).Exocytosis
Question 34. HCO₃⁻ – Cl⁻ transporter is an example of ____________
  1.    Uniport
  2.    Antiport
  3.    Symport
  4.    Facilitated diffusion
 Discuss Question
Answer: Option B. -> Antiport
Answer: (b).Antiport
Question 35. When does saturation occur?
  1.    When molecules are moved by the use of vesicles
  2.    When the energy from a high-energy bond is required to move molecules
  3.    When a group of carrier proteins is operating at its maximum rate
  4.    When a carrier molecule has the ability to transport only one molecule or a group of closely related molecules
 Discuss Question
Answer: Option C. -> When a group of carrier proteins is operating at its maximum rate
Answer: (c).When a group of carrier proteins is operating at its maximum rate
Question 36. Which of the following converts PGH₂ to thromboxane A₂?
  1.    Enoyl-ACP reductase
  2.    β-ketoacyl ACP reductase
  3.    Cyclooxygenase
  4.    Thromboxane synthase
 Discuss Question
Answer: Option D. -> Thromboxane synthase
Answer: (d).Thromboxane synthase
Question 37. Which of the following reduces double bond, forming saturated acyl ACP?
  1.    β-ketoacyl ACP reductase
  2.    β-hydroxyacyl ACP dehydratase
  3.    Enoyl ACP reductase
  4.    Malonyl co-A ACP transferase
 Discuss Question
Answer: Option C. -> Enoyl ACP reductase
Answer: (c).Enoyl ACP reductase
Question 38. Hydrolysis of phosphatidic acid by phosphatidic acid phosphatase yields
  1.    1, 2-diacylglycerol
  2.    1, 3-diacylglycerol
  3.    1, 4-diacylglycerol
  4.    1, 5-diacylglycerol
 Discuss Question
Answer: Option A. -> 1, 2-diacylglycerol
Answer: (a).1, 2-diacylglycerol
Question 39. In animal tissues, triacylglycerols and glycerophospholipids share two precursors
  1.    Fatty acyl co-A and L-glycerol 3-phosphate
  2.    L-glycerol 3-phosphate and L-glycerol 2-phosphate
  3.    Diacylglycerol 3-phosphate and L-glycerol 3-phosphate
  4.    L-glycerol 3-phosphate and diacylglycerol 2-phosphate
 Discuss Question
Answer: Option A. -> Fatty acyl co-A and L-glycerol 3-phosphate
Answer: (a).Fatty acyl co-A and L-glycerol 3-phosphate
Question 40. Which of the following is not true regarding synthesis of triacyl glycerol in adipose tissue?
  1.    Phosphatidate is hydrolyzed
  2.    Glycerol 3-phosphate dehydrogenase plays an important role
  3.    Glycerol kinase plays an important role
  4.    It is synthesized from dihydroxyacetone phosphate
 Discuss Question
Answer: Option C. -> Glycerol kinase plays an important role
Answer: (c).Glycerol kinase plays an important role

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