Question

Help! Help! Help! Which label belongs in the region marked X? A) Uses energy to work B) Moves from high concentration to low concentration C) Moves across the cell membrane D) Is a form of diffusion

Answer 1

The label that belongs in the region marked X is:

C) Moves across the cell membrane

The region marked X is referring to the process of passive diffusion, which involves the movement of molecules across the cell membrane without the need for energy expenditure. This movement occurs from an area of higher concentration to an area of lower concentration, which is in line with the definition of diffusion.

So... option C is the correct label for region X.