How does phototropism occur in plants? | Class 10 Science Chapter Control and Coordination, Control and Coordination NCERT Solutions

Question:

How does phototropism occur in plants?

Answer:

Phototropism is the process of growth of an organism in response to light reaction or stimulus. It is mostly seen in plants, but can also observed on other organisms. There are two types of phototropism:-

  1. Positive phototropism:- Growth of plant towards the direction of light is positive phototropism.

  2. Negative phototropism:- When growth of a plant is away from light is negative phototropism.

Several signalling molecules helps the plants to determine the light stimulus, activates genes & change the hormones for the growth of plant (i.e, auxine). This hormone helps the plants to have elongated cells on the farthest side from the light stimulus.


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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 4 , Question 6: How does phototropism occur in plants?....