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MCQs

General Biology

Total Questions : 1232 | Page 3 of 124 pages
Question 21. Number of chemical compounds from which living organisms are made is
  1.    92
  2.    16
  3.    20
  4.    108
 Discuss Question
Answer: Option B. -> 16
Answer: (b).16
Question 22. Plants and animals which are in danger of extinct if not protected are studied under name
  1.    enraged species
  2.    multicellular species
  3.    endangered species
  4.    unicellular species
 Discuss Question
Answer: Option C. -> endangered species
Answer: (c).endangered species
Question 23. Water which enters xylem cells, increase cell's
  1.    hydrostatic pressure
  2.    hydraulic pressure
  3.    water pressure
  4.    plasmolysis rate
 Discuss Question
Answer: Option A. -> hydrostatic pressure
Answer: (a).hydrostatic pressure
Question 24. Today size of a living world is
  1.    small
  2.    balanced
  3.    average
  4.    enormous
 Discuss Question
Answer: Option D. -> enormous
Answer: (d).enormous
Question 25. In western civilization, throembolism may lead to
  1.    paralysis
  2.    hemorrhage
  3.    Death
  4.    leukemia
 Discuss Question
Answer: Option C. -> Death
Answer: (c).Death
Question 26. Dry mass is lost through
  1.    lenticels
  2.    respiration
  3.    stomata
  4.    limiting factor of enzymes
 Discuss Question
Answer: Option B. -> respiration
Answer: (b).respiration
Question 27. Over-breathing can be countered through
  1.    in breath longer than out breath
  2.    out breath longer than in breath
  3.    excessive breathing
  4.    holding breath
 Discuss Question
Answer: Option B. -> out breath longer than in breath
Answer: (b).out breath longer than in breath
Question 28. One of the waste product of respiration is
  1.    carbon dioxide and oxygen
  2.    energy
  3.    fats
  4.    carbohydrates
 Discuss Question
Answer: Option A. -> carbon dioxide and oxygen
Answer: (a).carbon dioxide and oxygen
Question 29. All are wrong in case of alveolar walls but,
  1.    lining of single cells
  2.    lining of multiple cells
  3.    lining of palisade cells
  4.    depend on the age of organism
 Discuss Question
Answer: Option A. -> lining of single cells
Answer: (a).lining of single cells
Question 30. Cuticular transpiration occurs in
  1.    microorganisms
  2.    animals
  3.    plants
  4.    none of others
 Discuss Question
Answer: Option C. -> plants
Answer: (c).plants

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