Biology

The correct answer is D.E.

 

Here's why:

Carbohydrates in the cell membrane typically appear as branched chains that are attached to proteins or lipids, forming glycoproteins and glycolipids. These carbohydrate chains extend from the surface of the cell membrane and play a key role in cell recognition, signaling, and interactions with the extracellular environment.

 

Let’s break down the other options:

A: Refers to the phospholipid bilayer structure, with the hydrophilic heads facing outward and the hydrophobic tails facing inward.

B: Likely refers t...