In mass flow,various substances move independently according to their

The diffusion of any substance across a membrane depends on which of the following?

How does most of the water move within the root?

In which of the following pathways does the flow of water occur from cell to cell through their protoplasm?

Diffusion occurring along the concentration gradient and mediated by carrier molecules is known as:

Why does the rate of diffusion of a substance along the concentration gradient not increase continuously,even when the concentration difference of the molecules across the membrane increases?