GK-Biology Question and Answer

GK-Biology Question and Answer
11. One of the following is not a function of bones.
  • Place for muscle attachment
  • Protection of vital organs
  • Secretion of hormones for calcium regulation in blood and bones
  • Production of blood corpuscles
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12. Plants absorb most part of water needed by them through their
  • embryonic zone
  • growing point
  • root hairs
  • zone of elongation
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13. Photo-oxidation is
  • photorespiration
  • photolysis
  • light and oxygen induced breakdown
  • All of the above
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14. Proces of cell division can take place by
  • heterosis
  • fusion
  • mitosis
  • None of these
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15. Most highly intelligent mammals are
  • whales
  • dolphins
  • elephants
  • kangaroos
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16. Plant development is influenced by
  • quality of light only
  • quality and quantity of light
  • quality and duration of light
  • quality, quantity and duration of light
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17. Prokaryotic cells lack
  • nucleolus
  • nuclear membrane
  • membrane bound by organelles
  • All of these
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18. Photosynthesis takes place faster in
  • yellow light
  • white light
  • red light
  • darkness
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19. Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
  • Robert Hooke
  • Robert Brown
  • Rudolf Virchow
  • Theodore Schwann
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20. Primary phloem develops from
  • lateral meristem
  • protoderm
  • extrastelar cambium
  • provascular tissue
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