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science quiz 2

The process by which water moves across a cell membrane is called what? Osmosis
What is diffusion? What role does diffusion play in the cell? Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. Diffusion does not require energy, and has a membrane that allows some substances to pass through.
Explain how active transport is different from osmosis. Active transport is different from osmosis because unlike diffusion,passive transport, and osmosis. Active transport uses energy for cells to pass through.
What would happen if the concentration of the molecules outside the cell was lower than the concentration inside. If there were more molecules inside the cell then the cells wouldnt be moving to an area of lower concentraiton from an area of higher concentration, they would also die because they dont have enough oxygen.
How are passive and active transport related to the concentrations of the molecules inside and outside the cell. Active and passive transport are related to the concentration of molecules because they transport the proteins to carry the molecules in and out of the cell.
Created by: arv828x33