NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A major function of glycoproteins and glycolipids in the membane is to
A
glue cells together to form tissues
B
allow cells to identify each other
C
attach membrane to cytoskeleton
D
help retain shape
Explanation: 

Detailed explanation-1: -Glycoproteins, glycolipids, and proteoglycans on cell surfaces play critical roles in cell-cell recognition and the formation of tissues. They recognize and bind to carbohydrate receptors (lectins) on adjacent cells, leading to cell-cell attachment as well as intracellular responses in the interacting cells.

Detailed explanation-2: -So for this, our correct answer will be the option b cells ability to distinguish 1 type of neighbouring cell from another. That is the most important for the glycoproteins and ligolipids of cell membranes.

Detailed explanation-3: -So, what does a glycoprotein do in the cell membrane? Glycoproteins perform vital biochemical and structural functions. They enable cells to recognize another cell as familiar or foreign, which is called cell-cell recognition. They also help cells attach to and bind other cells, which is called cell adhesion.

Detailed explanation-4: -But the glycoproteins, glycolipids and proteoglycans that comprise the glycocalyx are not simply a barrier; rather, they serve essential roles in the transduction of signals from the outside to the inside of cells.

Detailed explanation-5: -Glycolipids are lipids with a carbohydrate attached by a glycosidic (covalent) bond. Their role is to maintain the stability of the cell membrane and to facilitate cellular recognition, which is crucial to the immune response and in the connections that allow cells to connect to one another to form tissues.

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