Channel proteins allow ions that would not normally pass through the cell membrane to pass through via the channel.The property of the channel protein that makes this possible is its pore, which is composed of A) polar amino acid groups. B) hydrophobic amino acid groups. C) Ca²⁺. D) carbohydrates. E) nonpolar R groups.

Question

Quizplus · Accepted Answer

Channel proteins have pores that are typically lined with polar amino acid groups. These polar groups create an environment that is conducive for the passage of ions, which are also polar, allowing them to pass through the hydrophobic lipid bilayer of the cell membrane.

Channel Proteins Allow Ions That Would Not Normally Pass Through