BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Receptors. Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus.

Detailed explanation-2: -Our sense organs detect changes in the world around us known as stimuli . The sense organs contain groups of specialised cells called receptor cells which produce electrical impulses in response to specific stimuli.

Detailed explanation-3: -Sensory receptors detect changes in the internal as well as external environment. Sensory receptors comprise specialised cells close to neurons or neuron endings, which are a part of the afferent neurons and send signals to the central nervous system and brain for processing and integration.

Detailed explanation-4: -Ruffini corpuscles in skin are considered to be skin stretch sensitive receptors of the discriminative touch system. They also work with the proprioceptors in joints and muscles to indicate the position and movement of body parts.