The LDL receptor is an integral membrane protein that crosses the plasma membrane,with portions of the protein extending both outside and into the interior of the cell.The amino acid side chains (R groups)in the region of the protein that crosses the membrane are most likely
A) charged.
B) hydrophilic.
C) hydrophobic.
D) carbohydrates.
E) lipids.

Question

Quizplus · Accepted Answer

The region of the protein that crosses the plasma membrane is composed of a hydrophobic environment. Therefore, the amino acid side chains (R groups) in this region are also hydrophobic.

The LDL Receptor Is an Integral Membrane Protein That Crosses