Question

define receptor with example

Answer 1

A receptor is a cell or a group of cell which is sensitive to a particular stimulus

Answer 2

Receptors are biological structures in the membranes of the cell or its organelles that convert stimuli from both external and internal environments into electrical impulses. Receptors are connected to the central nervous system by afferent nerve fibres.

For eg

*Sensory receptors give us the ability to see, hear, taste, smell, and to sense touch, pain, temperature and body position. They also provide us the unconscious ability of the body to detect changes in the blood volume, blood pressure and the levels of salts, gases and nutrients in the blood. The sensitivity of a sensory receptor depends on how much it has recently been stimulated. *Olfactory receptor, taste receptor, thermo receptors are the receptors used for the senses of smell, taste and perceive temperature stimuli. *Photoreceptors are the receptors used to detect light. They are found in rods and cones of the retina in the eye.

*Pain receptors sense the pain in parts of the body. Depending on the type of receptors activated there is an effect on the target cell.(getting excited, getting inhibited or getting altered.

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