The primary function of polysaccharides attached to the glycoproteins and glycolipids of animal cell membranes is A) to facilitate diffusion of molecules down their concentration gradients B) to actively transport molecules against their concentration gradients C) to maintain the integrity of a fluid mosaic membrane D) to maintain membrane fluidity at low temperatures E)

The primary function of polysaccharides attached to the glycoproteins and glycolipids of animal cell membranes is A) to facilitate diffusion of molecules down their concentration gradients B) to actively transport molecules against their concentration gradients C) to maintain the integrity of a fluid mosaic membrane D) to maintain membrane fluidity at low temperatures

E) mediate cell-to-cell recognition

The correct answer is E) mediate cell-to-cell recognition

Explanation:

Cell to cell recognition is important for a cell to know and distinguish its neighbor cells.

The function of membrane protein is thus;

• Intercellular adhesion • Cell-cell recognition • Attachment to cytoskeleton and extracellular matrix.

Intercellular adhesion is one way cell to cell communication happen contact with other cells by interaction with their specialized protein complex.

The contact between cells is accomplished with the aidof polysaccharides attached to the glycoproteins and glycolipids of animal cell membranes .

This type of communication is important for cell to multiply and function as one in organs like in the spleen, spleen cell only works when they are surrounded by more spleen cells.

So the right answer is E) mediate cell-to-cell recognition.