Class 11 Biology Plant Growth Development Development


  • Development is a term that includes all changes that an organism goes through during its life cycle from germination of the seed to senescence.
  • Plants follow different pathways in response to environment or phases of life to form different kinds of structures, and this ability is called plasticity.

For example- heterophylly in cotton

  • Development is considered as the sum of growth and differentiation.
  • Development in plants is under the control of intrinsic and extrinsic factors.
  • Intrinsic factor includes plant growth regulators, whereas extrinsic factor includes light, temperature, water, oxygen, nutrition, etc.


Fig. Heterophylly in cotton

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