What functions do lipids, carbohydrates and proteins have in the cell membrane?

Answer 1

Lipids form the bilayer that prevents the water soluble materials from passing inside the cell. The proteins make the channels that control the passage of these substances into and out of the cell, in addition to forming the base for the receptors. The carbohydrates are connected to proteins and together they make the receptor.

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Answer 2

Easton Bailey

Proteins: Help transport molecules across the membrane, function as receptors for signal transduction, and take part in cell adhesion. Lipids: Form the primary structural component of the cell membrane, providing a barrier to the passage of molecules. Carbohydrates: Serve as recognition sites for cell-cell recognition and communication.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.