Question

1. What is nastic movement ? 2. What is geotropic movement? 3. What is hydrotropic
movement with example. 4. Write two differences between tropic and nastic movement .5. Give two examples of auxin which are used in agriculture.
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Answer 1

Answer:

You see plants all around you. But, are they of the same size or height? Of course not! You see big trees, medium-sized shrubs, and even plant saplings. This tells us that plants exhibit some growth changes as well as some movements. This coordination in plants is attributed to the presence of plant hormones. Unlike animals, plants do not have any muscular system or nervous system. But, they are still able to show movement and also coordination. These movements are always controlled and not haphazard. Let us learn more about coordination in plants.