Biology, 04.09.2019 17:30 ZachLaVine2016
The cytoplasm of animal cells has a concentration of potassium ions (k+) as much as 20 times higher than the concentration outside the cell. how do cells move potassium ions against a concentration gradient, from a lower concentration to a higher one? a. facilitated diffusion b. active transport c. osmosis d. diffusion
Answers: 1
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