Under normal condition, where is 100% of glucose reabsorbed?
a. Descending nephron loop
b. DCT
c. Ascending nephron loop
d. Collecting duct
e. PCT
Ans: e. PCT
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Which structure in the figure is the hyoid bone?
a) A b) B c) D d) F e) G
Cysts on the kidney can press upon nephrons, raising the pressure inside the nephrons. How will this affect glomerular filtration rate and blood pressure?
A) GFR increases and blood pressure increases B) GFR decreases and blood pressure increases C) GFR increases and blood pressure decreases D) GFR decreases and blood pressure decreases
Why is the contraction strength of smooth muscle relatively independent of its resting length?
A. It is involuntary muscle. B. It gets nearly all of its Ca2+ from the extracellular fluid. C. It does not have intercalated discs. D. It is regulated by a length-tension relationship. E. It does not have sarcomeres.
An organic molecule such as a vitamin that makes an enzyme functional is called a/an
A. coenzyme. B. buffer. C. catalyst. D. coactivator.