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MCQs

Total Questions : 61 | Page 2 of 7 pages
Question 11. In the bundle sheath of C4 plant __________ is/ are less than mesophyll.
  1.    PSI
  2.    PSII
  3.    PSI or PSII
  4.    PSI and PSII
 Discuss Question
Answer: Option B. -> PSII
Answer: (b).PSII
Question 12. The major source of sugar in the world is
  1.    watermelon
  2.    beetroot
  3.    sugarcane
  4.    dates
 Discuss Question
Answer: Option C. -> sugarcane
Answer: (c).sugarcane
Question 13. Triticale is derived by crossing
  1.    wheat and rice
  2.    wheat and tapioca
  3.    rye (secale) and wheat
  4.    rye and rice
 Discuss Question
Answer: Option C. -> rye (secale) and wheat
Answer: (c).rye (secale) and wheat
Question 14. Triticale, the first man made cereal is an example of
  1.    artificial allopolyploidy
  2.    artificial autopolyploidy
  3.    man made crossing
  4.    artificial evolution
 Discuss Question
Answer: Option A. -> artificial allopolyploidy
Answer: (a).artificial allopolyploidy
Question 15. Mycorrhizae are symbiotic associations between
  1.    algae and fungi
  2.    root and fungi
  3.    bacteria and root
  4.    bacteria and fungi
 Discuss Question
Answer: Option B. -> root and fungi
Answer: (b).root and fungi
Question 16. An organism that relies exclusively on pre-synthesized food molecules is
  1.    autotrophic
  2.    photosynthetic
  3.    prokaryotic
  4.    heterotrophic
 Discuss Question
Answer: Option D. -> heterotrophic
Answer: (d).heterotrophic
Question 17. Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?
  1.    Bacteria
  2.    Algae
  3.    Nematodes
  4.    Moulds
 Discuss Question
Answer: Option A. -> Bacteria
Answer: (a).Bacteria
Question 18. In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?
  1.    Erythrose-4-phosphate
  2.    Ribulose-l,5-diphosphate
  3.    Ribose-5-phosphate
  4.    Alpha-ketoglutarate
 Discuss Question
Answer: Option B. -> Ribulose-l,5-diphosphate
Answer: (b).Ribulose-l,5-diphosphate
Question 19. A major plant macronutrient found in nucleic acids and proteins is
  1.    calcium
  2.    nitrogen
  3.    sulphur
  4.    iron
 Discuss Question
Answer: Option B. -> nitrogen
Answer: (b).nitrogen
Question 20. What is the metal ligand in chlorophylls?
  1.    Copper (Cu)
  2.    Iron (Fe)
  3.    Magnesium (Mg)
  4.    Manganese (Mn)
 Discuss Question
Answer: Option C. -> Magnesium (Mg)
Answer: (c).Magnesium (Mg)

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