In the 1 question mark the “o<“ -phospholipids and the big molecules must be proteins
2 — active requires ATP, passive doesn’t; it depends on the concentration gradient: passive goes along the gradient (where concentration is little) active moves where concentration is big
3 - Because of the concentration gradient - diffusion is passive so the salt is moving out of the cell
4-The cell will be little because water moves out of the cell ( concentration of salt inside the cell is less than outside)
:)