Question

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what is the difference between manner in which Movement in sensitive plant and Movement in our legs takes place .

how does chemical coordination occur in plants

how are involuntary actions and reflex action different from each other.

what is the function of receptors in our body think of situations where separate don't work properly what problems are likely to arise .

Answer 1

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➡Sensitive plant in response to touch shows quick movement of leaves which fold up and droop .Here plant cells change shape by changing the amount of water in term affected by plant hormones on the other hand movement in our legs is a voluntary action which is controlled by cerebellum part of hindbrain .It involves nervous control .

➡ In plants chemical coordination occur with the help of plant hormones in which specific hormones are secreted in one part of plant and these diffuse to reach specific sites to produce the affect the response of plants to sunlight occurs by bending of shoot towards . It occurs due to slow growth movements and the phenomenon is called positive phototropism .

➡Reflex actions are automatic , mechanical response to specific stimuli without the will of an animal . In reflex actions spinal cord is generally involved .Involuntary actions also occur without the will of animal and animal has no choice in them however these are regulated by either midbrain or Hindbrain

➡The receptors in our body collect information about changes in the environment around us in the form of stimuli then they pass the information in form of nerve impulses to central nervous system where message ins interrupted and approciate instructions are sent to a effectors which reveal responses .