Explanation:
1. cell membranes are partialy permeable, only allowing passage to some certain molecules.
2. diffusion is the movement of molecules across partially permeable membrane down concentration gradient.
3. the molecules are too big to pass through partially permeable membrane. the concentration of the molecule might be higher in the cell than in the solution/surroundings.
Transporting substances in a cell. proteins are transported either in or out of the cell.
The head at the top, the tail is just for getting to the egg
Violet Light waves Is the answer fam
