The kidneys maintain acid-base balance mainly by excreting ________ and reabsorbing ________ .
A. bicarbonate; sodium.
B. hydrogen; bicarbonate.
C. sodium; potassium.
D. chloride; hydrogen
Answer: B
You might also like to view...
Alcohol promotes the function of antidiuretic hormone.
Answer the following statement true (T) or false (F)
Binding of ACh to all muscarinic receptors is excitatory, but binding of Ach to nicotinic receptors may be excitatory or inhibitory
Indicate whether the statement is true or false
What happens to blood pressure during exercise?
A. It increases slightly; some cardiovascular changes promote an increase while others promote a decrease. B. It decreases greatly because vasodilation in skeletal muscles and heart tissue more than offsets factors that increase blood pressure. C. It decreases slightly; some cardiovascular changes promote a decrease while others promote an increase. D. It increases greatly because cardiac output increases and vasoconstriction in inactive organs raises blood pressure directly.
What flexible, crystal-like structure of the eye focuses light on the retina?
A) iris B) sclera C) lens D) choroid E) optic chiasma