The molecules in the plasma membrane that serve as receptors for other molecules are the:
a. phospholipid molecules
b. cholesterol molecules
c. protein molecules
d. all of the above
d. all of the above
You might also like to view...
Compared to slow-twitch fibers, fast-twitch fibers respond to a stimulus with less delay and with a shorter contraction duration
Indicate whether this statement is true or false.
Which of the following comparisons of osmolarity within the kidneys is INCORRECT?
A) The fluid in the proximal tubule is iso-osmotic with cortical interstitial fluid. B) Osmolarity of the ascending limb of the loop of Henle is greater than that of the descending limb. C) Osmolarity of the descending limb of the loop of Henle is iso-osmotic with the medullary interstitial fluid. D) The osmolarity of plasma in the vasa recta varies with its location in the renal medulla. E) Osmolarity of fluid in the proximal tubule is greater than the osmolarity of fluid in the end of the loop of Henle as it enters the distal tubule
The filtrate first passes from the glomerular capsule to the
A) nephron loop. B) proximal convoluted tubule. C) distal convoluted tubule. D) collecting duct. E) minor calyx.
A monosynaptic reflex that monitors and regulates skeletal muscle length is a ________ reflex.
A. flexor B. withdrawal C. hypoactive D. stretch E. Golgi tendon