If the blood PCO2 is high, the kidneys will do which of the ...

[arivle123]

If the blood PCO2 is high, the kidneys will do which of the following?
 
  a. Excrete more H+ and reabsorb more HCO3.
  b. Excrete less H+ and reabsorb more HCO3.
  c. Excrete less H+ and reabsorb less HCO3.
  d. Excrete more H+ and reabsorb less HCO3.

Question 2

Normally which of the following occur when the kidneys eliminate H+? 1. Sodium ions (and water) are reabsorbed. 2. HCO3 is reabsorbed in proportion to the H+ excreted. 3. Bicarbonate buffer capacity is restored.
 
  a. 1, 2, and 3
  b. 1 and 3 only
  c. 2 only
  d. 2 and 3 only

[Chocorrol77]

Answer to Question 1

ANS: A
If the blood PCO2 is high, creating high levels of H2CO3, then the kidneys excrete greater amounts of H+ and reabsorb all of the tubule filtrate's HCO3 back into the blood.

Answer to Question 2

ANS: A
Both HCO3 ions and Na+ ions are reabsorbed with water whenever H+ ions are secreted into the tubular filtrate.

[arivle123]

Thank you

[Chocorrol77]

Happy to help you