Question

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)

Answer 1

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

Answer:

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

Step-by-step 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.

Answer 2

to mediate cell-to-cell recognition.

Step-by-step explanation:

Polysaccharides attached to glycolipids and glycoproteins of animal cell membranes play an important role in mediating cell-to-cell recognition.

Glycoproteins are formed by the covalent attachment of sugar molecules to proteins. While glycolipids are formed by the covalent attachment of sugar molecules to lipids. These sugars (polysaccharide) in these glycoconjugates plays an important role in cellular communication i.e. enable a cell to be recognized by other cells. For example, a particular protein meant to perform a specific function for an organelle can be tagged by polysaccharides which enables the cell to move the protein the organelle. Certain polysaccharides have the ability o be recognized by certain protein which enables cellular communication.