Question

how do substances like CO 2and water move in and out of the cell
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Answer 1

The substances like CO2 and water move in and out of a cell by diffusion from the region of high concentration to low concentration. ... When the concentration outside the cell becomes low and it is high inside the cell, they moves out ...

Diffusion.

Answer 2

CO2 is a gas so, it moves in and out of the cell by diffusion. Diffusion is a process in which the molecules intermingle due to their kinetic energy and movement of molecules is from higher concentration to lower concentration.

Hope it helps......