Science
How is the movement of leaves of a sensitive plant different from the downward movement of the roots?
Chemical Coordination in Plants
3 Likes
Answer
The movement of leaves in a sensitive plant (like Mimosa pudica) occurs in response to touch or contact. It is a nastic movement, which means it does not depend on the direction of the stimulus and this movement happens due to changes in water content in the cells of the leaf base, not due to growth.
The downward movement of roots, on the other hand, is a tropic movement, specifically geotropism or gravitropism, which means it occurs in response to the direction of gravity and involves growth of the root cells.
Answered By
3 Likes
Related Questions
Name the type of chemical reaction in which calcium oxide reacts with water. Justify your answer by giving balanced chemical equation for the chemical reaction.
State one role of each of the following in human digestive system:
(a) Hydrochloric acid
(b) Villi
(c) Anal Sphincter
(d) Lipase
There is a hormone which regulates carbohydrate, protein and fat metabolism in our body. Name the hormone and the gland which secretes it. Why is it important for us to have iodised salt in our diet?
An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position of the image formed by the mirror.