Question

Explain with examples how CARBOHYDRATES units on the cell surface play key roles in

the cell to cell recognition.

Answer 1

it plays imp role in formation of plasma membrane n it also plays a imp role in formation of various cell organelles

as it is form of sugar n sugar is a carbohydrate

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Answer 2

Carbohydrates on the surface of a cell plays a major role in cell-cell recognition. It also serves as a point of recognition in infectious bacteria, viruses, toxins and hormones. Carbohydrates are the strong antigens that have the ability to trigger strong immune reactions. The carbohydrates are recognized by the adhesion molecules in the cell in which glycoporteins expressed on the cell surface.

For example:

Parvoviruses attach to the erythrocyte-specific cell surface P-antigen

Influenza virus uses glycophorin to enter the erythrocytes.