Bicarbonate crosses the apical membrane of the proximal tubule by
A) HCO3-/Cl- countertransporters.
B) HCO3- active transporters.
C) conversion to carbon dioxide.
D) Na+/HCO3- cotransporters.
E) Na+/HCO3- countertransporters.
Ans: C) conversion to carbon dioxide.
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Introduction to the Structural Units
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High levels of estrogen directly stimulate the LH-secreting cells of the anterior pituitary
Indicate whether the statement is true or false