Most solutes pass through the cytoplasmic membrane via
A) osmosis.
B) diffusion.
C) transport proteins.
D) secretion.
E) aquaporins.

Question

Quizplus · Accepted Answer

Most solutes cannot pass through the cytoplasmic membrane on their own due to the hydrophobic nature of the membrane. Thus, they require transport proteins embedded in the membrane to facilitate their movement. However, some solutes may also pass through the membrane by diffusion, which is passive movement down a concentration gradient. Osmosis is the movement of water across a membrane, not solutes. Secretion is the active process of exporting molecules out of the cell, and aquaporins are specialized proteins that facilitate the movement of water molecules across membranes.

Most Solutes Pass Through the Cytoplasmic Membrane Via