(a) what role do the kidneys play in homeostasis?
(b) list the vessels through which blood passes as it flows through the kidney.
(c) what is the basic functional unit of the kidney? what are its primary functions?
describe the functions of each of the following parts of the nephron and associated structures in the process of urine production: glomerulus, glomerular capsule, proximal convoluted tubule, peritubular capillaries, descending limb of the nephron loop, ascending limb of the nephron loop, distal convoluted tubule, and collecting duct.

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.