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STD 11 - 13. Plant growth and development — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 13. Plant growth and development4 Marks
MCQ
A hormone delaying senescence is
  • A
    Auxin
  • ✓
    Cytokinin
  • C
    Ethylene
  • D
    Gibberellin
✓

Answer

Correct option: B.
Cytokinin
b
Senescence is the process of ageing which is caused by increased entropy, cellular breakdown, reduced anabolic process and increased catabolic process. Cytokinins are amino purine derivatives which promote cell division and delay senescence by controlling protein synthesis.

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