Multiple choice

Cytoplasmic membrane of a bacterial cell contains membrane proteins located in various positions. Through specific interactions with phospholipid molecules, which of the following functions is performed by inner-surface proteins?

  1. They provide flexibility to the membrane.

  2. They transport substances across the cytoplasmic membrane.

  3. They transport large molecules into the cells.

  4. They cooperate with other proteins in energy yielding reactions.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The inner-surface proteins cooperate with other proteins in energy yielding reactions.