Question

In animals the sensory capabilities evolved over hundreds of millions of years. It is therefore not surprising that different sensory aspects use similar transduction mechanisms. In terms of transduction (i.e., the way energy or chemicals are sensed and transduced into an electrical signal), which distinct human sensory systems use the same molecular mechanisms? Please list two pairs of systems and explain the similarity.

Answer 1

Transduction : conversion of one form of energy into other

SENSORY TRANSDUCTION
Sensory transduction in a receptor is a process by which the energy (stimulus)in the environment is converted into electrical impulses (action potentials) in nerve fiber When a receptor is stimulated, it gives response
by sending information about the stimulus to CNS.
Series of events occur to carry out this function such as the development of receptor potential in the receptor cell and development of action potential in the sensory nerve.
Sensory transduction varies depending upon the
type of receptor. For example, the chemoreceptor con­verts chemical energy into action potential in the sensory nerve fiber. Touch receptor converts mechanical energy into action potential in the sensory nerve fiber.

SIGNAL TRANSDUCTION

It is the process in which a chemical or physical signal is moves through a cell as a molecular events mainly by phosphorylation of protein catalyzed by protein kinases.It leads in to a cellualr response.Receptors or sensors responsible for stimuli.The changes occured by ligand binding in a receptor result in a cascade.It is a chain.This event is known as signal pathway.