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Difference between response to stimulus in animals and plants

Similarities and differences between response to stimulus in animals and plants are as follows:

COMPARING RESPONSE TO STIMULUS IN ANIMALS AND PLANTS - Teachoo.jpg

Movement due to growth in plants

MOVEMENT DUE TO GROWTH IN PLANTS - Teachoo.jpg

Look carefully at the image.

  • The stem and leaf tendrils are sensitive to touch .
  • When they come in contact with the support, a hormone called auxins is synthesized and it diffuses to the other side of the plants.
  • This makes the rate of growth of tendrils less as compared to the other parts of the plants .
  • The tendrils cling on to a support (eg. bamboo stick) and grows on by circling around the stem for support.

This is a growth that is directional (up the support) and so it appears as movement.

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Transcript

COMPARING RESPONSE TO STIMULUS IN ANIMALS AND PLANTS Animals Specialized tissue for conduction of information They change shape because of specialized proteins in muscles Electrical chemical signal. Cell change shapes Plants No specialized tissue for conduction They change shape because of change in amount of water in cells MOVEMENT DUE TO GROWTH IN PLANTS Stem tendril Leaf tendril Weak stem Bamboo stick (for support) Bamboo stick (for support)

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo