Regulation of blood pH by the kidneys

1.         The kidneys control pH by adjusting the amount of HCO3 − that is ___________and the amount of H+ that is _____________.

a)      Excreted; reabsorbed

b)     Filtered; excreted

c)      Reabsorbed; excreted

d)     Synthetized; filtered

2.         HCO3 − reabsorption occurs mostly in the

a)      Loop of Henley

b)     Urinary ladder

c)      Distal tubule

d)     Proximal tubule

e)      Glomerulus

3.      The kidneys affect blood pH __________ than other buffering mechanisms in the body.

a)      More slowly

b)     Faster

c)      At the same rate

4.      The kidneys remove H⁺ if there is ________ acid in the body

a)      A deficit of

b)     An excess of

5.      The kidneys remove H⁺ if there is

a)      Low blood pH

b)     High blood pH

c)      Neutral blood pH

d)     Metabolic alkalosis

6.      The kidneys remove _________ if there is excess base in the body

a)      H⁺

b)     HCO₃^-

c)      Water

d)     Oxygen

e)      Sugar

7.      The kidneys work _______________ to regulate blood pH

a)      Alone

b)     Together with the lungs

c)      Together with the lungs and the buffer systems

d)     None is a possible answer