Question

(2) What happened to the pH of the water after exercise? Why?

Answer 1

Upon exercise, the pH of the water in the bloodstream decreased due to the increase in the accumulation of the lactic acid. Normally the pH of the water is 7 and the pH of the blood in the range of 7.35 and 7.45 and strenuous exercise drop it down and become more acidic. The change in the pH most is due to the high demand for the energy and exercise increases the production of the energy through aerobic and anaerobic metabolism. The byproducts formed by metabolism tends to reduce the pH. another reason is the accumulation of the lactic acid which tends to increase mostly during anaerobic metabolism as with intense exercise body is not able to keep with oxygen demand and the product of anaerobic metabolism is pyruvate that turns into lactic acid.