Part Two: Structures and Functions Directions: Stand and let your hands hang next to your sides for a few minutes. Then, look at the backs
of your hands. Do you see any bumps on the surface on top of your veins? What might those be, and
what are their function?

5. what might happen if you were to remove all light from the setup after the discs have all become buoyant? describe what you would see. explain why this would occur with relation to cellular processes like respiration. [referring to an ap biology lab in which spinach discs are placed in a sodium bicarbonate solution and exposed to light.]