Question

how do substance like carbon dioxide and water move in and out of the cell?
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Answer 1

Answer:

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 of CO2 and water is higher in external environment than that inside the cell, CO2 and water moves inside the cell.

Answer 2

Answer:

By the process called Diffusion. Concentration of Co2 and water at outside is greater than inside the cell so transfer of Co2 and water takes place from HIGHER TO LOWER CONCENTRATION.