Which of the following processes could result in the net movement of a substance into a cell,if the substance is more concentrated in the cell than in the surroundings?
A)active transport
B)facilitated diffusion
C)diffusion
D)osmosis

Question

Quizplus · Accepted Answer

Active transport is able to move substances against their concentration gradient, so if the substance is more concentrated in the cell, it can be moved into the cell through active transport. Facilitated diffusion and diffusion both move substances down their concentration gradient, so they would not result in the net movement of a substance into a cell if it is more concentrated in the cell. Osmosis specifically refers to water moving across a semi-permeable membrane, so it may not apply to all substances.

Which of the Following Processes Could Result in the Net