Class 11 Biology Plant Physiology Plant Growth and Development



Define phototropism and give one example.
Solution: 
  • Phototropism is defined as the orientation of the plant or other photosynthesizing organisms in response to light.
  • Phototropism is a phenomenon by which a plant can maximize its exposure to sunlight because plants need sunlight to make food
  • Phototropism is of two types-
  1. Positive phototropism- Response of plant towards the light source. Example include sunflower.
  2. Negative phototropism- Plant grows opposite to the light source. Example include Arabidopsis inflorescence.

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Similar topics
plant growth and development
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Connecting you to a tutor in 60 seconds.
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plant growth and development
respiration in plants
transport in plants
anatomy of flowering plants
photosynthesis in higher plants