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MCQs

Total Questions : 178 | Page 4 of 18 pages
Question 31. Most reactions in living cells are
  1.    reversible
  2.    irreversible
  3.    static
  4.    redox
 Discuss Question
Answer: Option A. -> reversible
Answer: (a).reversible
Question 32. Enzyme activity can also be charted through the
  1.    rate of digestion
  2.    rate of reaction
  3.    level of pH
  4.    number of active sites
 Discuss Question
Answer: Option B. -> rate of reaction
Answer: (b).rate of reaction
Question 33. In order to increase the rate of reaction, the
  1.    limiting factor shall increase
  2.    limiting factor shall decrease
  3.    substrate concentration shall be increased
  4.    enzyme concentration shall be increased
 Discuss Question
Answer: Option B. -> limiting factor shall decrease
Answer: (b).limiting factor shall decrease
Question 34. In which category of resources, metal lies
  1.    renewable resource
  2.    non-renewable resource
  3.    artificial resource
  4.    element
 Discuss Question
Answer: Option B. -> non-renewable resource
Answer: (b).non-renewable resource
Question 35. Problem of solid waste disposal can be reduced through
  1.    recycling
  2.    lesser pollution
  3.    more timber
  4.    population control
 Discuss Question
Answer: Option A. -> recycling
Answer: (a).recycling
Question 36. In mammals, Bone marrow produces
  1.    red blood cells
  2.    white blood cells
  3.    platelets
  4.    antibodies
 Discuss Question
Answer: Option A. -> red blood cells
Answer: (a).red blood cells
Question 37. In mammals all is true about Red Blood Cells (RBCs) , but
  1.    has a diameter of .01 mm
  2.    contains nucleus
  3.    are biconcave in appearance
  4.    can squeeze through capillaries
 Discuss Question
Answer: Option B. -> contains nucleus
Answer: (b).contains nucleus
Question 38. Binding of enzyme and substrate on active site is explained through
  1.    hide and seek hypothesis
  2.    lock and hide hypothesis
  3.    lock and run hypothesis
  4.    lock and key hypothesis
 Discuss Question
Answer: Option D. -> lock and key hypothesis
Answer: (d).lock and key hypothesis
Question 39. Salivary and pancreatic amylase help digest
  1.    proteins
  2.    starch
  3.    fats
  4.    minerals
 Discuss Question
Answer: Option B. -> starch
Answer: (b).starch
Question 40. Thinner center and thicker edge is a characteristic of
  1.    red blood cells
  2.    white blood cells
  3.    platelets
  4.    antibodies
 Discuss Question
Answer: Option A. -> red blood cells
Answer: (a).red blood cells

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