Explain the types of carrier protenins.

Explanation

There are 3 types of carrier proteins classified on the basis of handling of molecules and direction of transport in facilitated diffusion. They are:
i) Uniport : In this molecule of a single type move across a membrane independent of other molecules in one direction.
ii) Symport or co - transport : The term symport is used to denote an integral membrane protein that simultaneously transports two types of molecules across the membrane in the same direction.
iii) Antiport or Counter Transport : An antiport is an integral membrane transport protein that simultaneously transports two different molecules, in opposite directions, across the membrane.