Question

answer the following

Answer 1

Hey

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

2)IT IS BECAUSE , Plasma membrane allows some material to pass through it while on the same time it blocks other material from entering through it… In other words its selects materials that can enter the cell… that`s the reason it is called as selectively permeable membrane

Hope it helps

Answer 2

1). CO2 and other gases moves out of the cell by osmosis