Molecules are defined as the smallest particles of a chemical compound or an element, and are made up of atoms. Cells are made up of semi permiable membranes that only allow selected materials to move in or out of the cell, therefore due to the big size of molecules compared to atoms the membrane doesn't allow their passage in the cell. Therefore the cell doesn't allow most molecules to diffuse passively to the cell. Secondly, molecules that can enter the cell requires specific carriers carriers that will enable entry of small molecules in the cell.
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When there is an increase in water volume in plasma, it causes the hydrostatic pressure in plasma to increase and the osmotic pressure to decrease and as a result, water will move out of plasma.
<h3>How does increased water volume affect hydrostatic pressure in plasma</h3>
When water volume in plasma increases, the hydrostatic pressure will increase.
Increase in water volume will result in a decrease in the osmotic pressure of plasma due to dilution of the solutes in plasma.
Therefore, to maintain homeostasis, water will move out of the plasma by simple diffusion and osmosis.
Therefore, increased water volume causes the hydrostatic pressure in plasma to increase and the osmotic pressure to decrease and as a result, water will move out of plasma.
Learn more about osmotic pressure and hydrostatic pressure at: brainly.com/question/8852471
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