Question

How do substances like CO2 and water move in and water move in and out of the cell ?

Answer 1

Answer:

CO2 with diffusion  and water with osmosis .

Explanation:

Gases like carbon dioxide and oxygen get diffuse in and out of cell through cell membrane . Osmosis is a special type of diffusion which help liquid it move through cell .

Answer 2

CO₂ and H₂O moves in and out of the cell by the process of diffusion.

$\fbox{\bold{\mathsf{Diffusion:}}}$

The movement of atoms, ions, or molecules from higher concentration region to the lower concentration region is called as diffusion.

As we know, the plasma membrane which is the outer layer of the cell is selectively permeable membrane. It means that, only some selective items will move in and out based on the requirements of the cell.

Suppose, the water concentration inside a cell is higher and the neighbouring cell's water concentration is lower, then the water will move from higher concentration region to the lower concentration region through a semi-perimable membrane. But this process is called as osmosis. Osmosis is also a type of diffusion but it only happens in water.

Thus, the water concentration in that cell will be more than its neighbouring cell. So, the water will move from higher concentration level to the lower concentration level. Thus, this again and again goes on repeating.

Thus, the water is moved.

$\fbox{\bold{\mathsf{Osmosis:}}}$

The movement of water molecules from higher concentration region to the lower concentration level through a semi-perimable membrane is called as osmosis.

Suppose, the concentration of CO₂ is more in one cell and the concentration of CO₂ in its neighbouring cell is low, then the CO₂ will move from higher concentration level to a lower concentration level.

As the plasma membrane is selectively permeable membrane, it will allow the passage of CO₂ inside the cell as the concentration of CO₂ is less.

Same for the other cells, the concentration of CO₂ will be lowered than the other. Thus, the cycle goes on repeating for each and every cell.

Thus, the CO₂ is moved.