Botany - Transport in Plants Question with Solution | TestHub

Movement by diffusion is passive and may be from one part of the cell to the other, or from cell to cell, or over short distances, say, from the intercellular spaces of the leaf to the outside. No energy expenditure takes place. Diffusion is very important to plants since it is the only means for gaseous movement within the plant body. No special protein is required for the movement of gases across the membrane.