1. The kidneys remove excess CO2 that can occur after exercise by decreasing the amount of bicarbonate in the blood helping to increase the pH.

true or false

2. Exercise can affect the pH balance in the body. Which of the following statements below are true?

a) Other body systems such as the lungs and the kidneys work to re-establish the pH after strenuous exercise.

b) The presence of added H+ causes the amount of HCO₃^- in the blood to increase affecting the blood buffer system.

c) The addition of H+ during strenuous exercise is managed by the blood buffer system.

d) The pH decreases in the blood during exercise due to the products of metabolic processes that occur such as the formation of lactic acid.