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MCQs

Total Questions : 127 | Page 11 of 13 pages
Question 101. . What is present in the stomach to prevent self-digestion?
  1.    Mucus
  2.    acid
  3.    Enzymes
  4.    hormones
 Discuss Question
Answer: Option A. -> Mucus
Question 102. . Patients suffering from Von Gierke's disease are unable to perform gluconeogeneis because they have a defective
  1.    lactate dehydrogenase
  2.    glucose 6 phosphatase
  3.    pyruvate carboxylase
  4.    none of these
 Discuss Question
Answer: Option B. -> glucose 6 phosphatase
Question 103. . The multistep pathways of metabolism are efficient because they
  1.    locate all of the enzymes for a pathway in the same place within the cell
  2.    use the same substrate for all of the enzymes in the pathway
  3.    use the same enzyme for all of the substrates in the pathway
  4.    spread the enzymes for a pathway into several different organelles
 Discuss Question
Answer: Option A. -> locate all of the enzymes for a pathway in the same place within the cell
Question 104. . 
Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as
  1.    biosynthetic
  2.    catabolic
  3.    catalytic
  4.    photosynthetic
 Discuss Question
Answer: Option B. -> catabolic
Question 105. . Aldolases splits fructose 1,6 biphosphate into
  1.    glyceraldehyde 3- phosphate
  2.    glyceraldehyde 3- phosphate and dihydroxyacetone phosphate
  3.    dihydroxyacetone phosphate
  4.    none of the above
 Discuss Question
Answer: Option B. -> glyceraldehyde 3- phosphate and dihydroxyacetone phosphate
Question 106. . Fructose diphosphate accumulation would
  1.    inhibit glycolysis and gluconeogenesis
  2.    stimulate glycolysis and gluconeogenesis
  3.    stimulate glycolysis and inhibit gluconeogenesis
  4.    inhibit glycolysis and stimulate gluconeogenesis
 Discuss Question
Answer: Option C. -> stimulate glycolysis and inhibit gluconeogenesis
Question 107. . What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration synthesis, if molecular formula for glucose is C6H,206?
  1.    C60H100O50
  2.    C60H120O60
  3.    C60H102O51
  4.    (C6H12O6)10
 Discuss Question
Answer: Option C. -> C60H102O51
Question 108. . Glycolysis reactions take place in
  1.    cytoplasm
  2.    cell membrane
  3.    cell wall
  4.    plasmids
 Discuss Question
Answer: Option A. -> cytoplasm
Question 109. . An intermediate which inhibits the activity of fructose 1,6 diphos-phatase would inhibit
  1.    glycolysis
  2.    pyrolysis
  3.    gluconeogenesis
  4.    none of these
 Discuss Question
Answer: Option C. -> gluconeogenesis
Question 110. . In the Glycolysis reaction, for each glucose conversion how many ATP's are produced?
  1.    4
  2.    2
  3.    1
  4.    3
 Discuss Question
Answer: Option B. -> 2

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