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MCQs

Total Questions : 127 | Page 3 of 13 pages
Question 21. Boat and chair conformations are found
  1.    in pyranose sugars
  2.    only in D-glucopyranose
  3.    in any sugar without axial -OH groups
  4.    in any sugar without equatorial -OH groups
 Discuss Question
Answer: Option A. -> in pyranose sugars
Question 22. Two major products of pentose phosphate pathway are
  1.    FAD and CoA
  2.    flavine adenine dinuclueotide and glucose 5-phosphate
  3.    nicotinamide adenine dinucleotide and ribose 5-phosphate
  4.    NADPH and NAD
 Discuss Question
Answer: Option C. -> nicotinamide adenine dinucleotide and ribose 5-phosphate
Question 23. A catabolic intermediate which stimulates phosphofructokinase would stimulate
  1.    none of these
  2.    glycogen synthesis
  3.    gluconeogenesis
  4.    glycolysis
 Discuss Question
Answer: Option D. -> glycolysis
Question 24. Pyruvate is initially converted to which of the following in the gluconeogenesis?
  1.    Acetyl CoA
  2.    Oxaloacetate
  3.    Phosphoenol pyruvate
  4.    Glycerol
 Discuss Question
Answer: Option B. -> Oxaloacetate
Question 25. Hydrolysis of lactose yields
  1.    fructose and galactose
  2.    galactose and fructose
  3.    galactose and glucose
  4.    glucose and fructose
 Discuss Question
Answer: Option C. -> galactose and glucose
Question 26. The conversion of pyruvate to lactate is catalysed by
  1.    lactate dehydrogenase
  2.    pyruvate dismutase
  3.    pyruvate carboxylase
  4.    pyruvate decarboxylase
 Discuss Question
Answer: Option A. -> lactate dehydrogenase
Question 27. A-amylose is similar to
  1.    β-sheets
  2.    the hydrophobic core
  3.    α-helices
  4.    β-turned coils
 Discuss Question
Answer: Option C. -> α-helices
Question 28. The glycosidic bond
  1.    in maltose is not hydrolyzed in lactose intolerant humans
  2.    joins glucose and fructose to form sucrose
  3.    in sucrose is hydrolyzed by bees
  4.    both (b) and (c)
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 29. Storage polysaccharide made by animals is
  1.    amylopectin
  2.    collagen
  3.    cellulose
  4.    glycogen
 Discuss Question
Answer: Option D. -> glycogen
Question 30. Which of the following can act as precursors for gluconeogenesis?
  1.    All of these
  2.    Lactate
  3.    Glycerol
  4.    Alanine
 Discuss Question
Answer: Option A. -> All of these

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