Question 6 (1 point) Membrane proteins serve many functions for a cell. All cell

Question

Question 6 (1 point) Membrane proteins serve many functions for a cell. All cells also should have additional glycocalyx molecules covering the outer surface of cells. Glycocalyces are usually made of part protein, part carbohydrate, part lipid and essentially serve as unique cellular ID tags. Immune cells have vital roles in determining who is "self" and who is "foriegn" by recognizing these cel ID tags. Many other normal body cells depend on cell-cell recognition for normal functions. What is the name if this "Cell ID tag"?? O Cholesterol Receptor Antigen Ligand

Explanation / Answer

Ans.6 The antigens are the cell ID tags which is present on the cell membrane surface. which is used by the immune system to differentiate between self and non-self.

Ans.7 The diffusion of molecules depends upon the concentration of gradient across the cell membrane and moves from higher concentration towards its low concentration.

Ans.8 phospholipids and proteins constitute plasma membrane and is responsible for selectively permeability.

Ans.9 By creating a channel or acting as carrier protein.

Ans.10 extracellular and intracellular fluids.

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