Question

plz do mention which one ur answering to. thank u​

Answer 1

Answer:

tropic means movement

Phototropism:

The movement or the response given by the plant body for the stimuli given by the light is called phototropism

eg: the movemennt of the sun flower in the direction of sunlight.

Geotropism:

The charecteristic movement of the plant in response to gravity.

eg: ground nuts

Chemotropism:

The characteristic movement of the plant in response to the chemicals

eg: growth of pollen tube towards ovule.

Thigmotropism:

The characteristic movement of the plant in response to surrounding environmental conitions either away or towards the plant.

eg: coiling of tendrils in pea plant.

Recptor:

That detects the stimuli and converts into impulse

eg: photoreceptors in eye

Effector:

That which converts impulse into action.

eg: muscle

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