Does the nucleus control the diffusion?

Answer 1

Only indirectly. The part of the cell that regulates the movement of material is the cell membrane, which surrounds the cell.

Answer 2

No, the nucleus does not control diffusion. Diffusion is a passive process that occurs based on the concentration gradient of molecules and does not require energy. It is regulated by the permeability of the cell membrane and the size and charge of the molecules involved.

Answer 3

yes

Answer 4

Yes.