Which of the following means of transport would most likely be used for moving a medium-sized molecule (like a monosaccharide or an amino acid)from a low concentration on the outside of a cell to a high concentration on the inside of a cell?

Question

Quizplus · Accepted Answer

Moving a molecule against its concentration gradient from low to high concentration requires active transport through a "pump" protein. Facilitated diffusion through a channel or transporter protein can only move molecules down their concentration gradient from high to low concentration. Passive transport also moves molecules down their concentration gradient, without any energy input.

Which of the Following Means of Transport Would Most Likely