Question

Define receptors and effector?

Answer 1

A receptor is a protine which binds to a specific molecule.It is a cell or group of cells that receives stimuli.


A effector is a molecule that binds to a protine and affects the function of that protine.

Answer 2

Receptors :- Receptors are groups of specialised cells. They can detect changes in the environment, which are called stimuli, and turn them into electrical impulses. Receptors are often located in the sense organs, such as the ear, eye and skin. Each organ has receptors sensitive to particular kinds of stimulus.
Example:- Sense organs.

Effector:- An effector is any part of the body that produces the response. Here are some examples of effectors:
•A muscle contracting to move the arm.
•A muscle squeezing saliva from the salivary gland.
•A gland releasing a hormone into the blood.
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In simple words:-
Receptor is the cell that is able to detect changes in the environment; often sense organs.
and
Effector is a part of the body that responds to the stimulus, e.g a muscle or a gland.