Questions: Which of the following is not a major function of proteins in the cell membrane? forming ctannels forming the entire glycocalyx anchoring cells to other structures acting as receptors

The answer is: forming the entire glycocalyx.

Explanation for each option:

1. Forming channels: This is a major function of proteins in the cell membrane. Channel proteins facilitate the transport of substances across the cell membrane.
2. Forming the entire glycocalyx: This is not a major function of proteins in the cell membrane. The glycocalyx is primarily composed of carbohydrates, although it is associated with membrane proteins and lipids.
3. Anchoring cells to other structures: This is a major function of proteins in the cell membrane. Some membrane proteins act as anchors, connecting the cell to the extracellular matrix or to other cells.
4. Acting as receptors: This is a major function of proteins in the cell membrane. Receptor proteins bind to specific molecules (ligands) and initiate cellular responses.

Summary: The function that is not a major role of proteins in the cell membrane is forming the entire glycocalyx.