Question

Homeostasis maintains the pH of blood plasma between 7.35 and 7.45. The kidneys control the amount of bicarbonate ion in plasma and the lungs control the amount of carbon dioxide in plasma. If a person suffers from a case of extreme acidosis:

a. The lungs would hyperventilate, decreasing CO2 in the plasma and the kidneys would save and excrete HCO3- into blood plasma

b. The lungs would hyperventilate, keeping CO2 levels high in plasma

c. The kidneys would remove CO2 and excrete it into blood plasma rather than into urine.

d. The respiratory system would hyperventilate keeping more CO2 in the plasma

Answer 1

The excessive increase of acid in body fluid is known as acidosis. It occurs when kidneys and lungs can’t keep the body’s pH balanced.

The Respiratory acidosis occurs when too much CO₂ accumulates in the body fluids. The lungs remove CO₂ from our body through breathing. When the acid quantity increases, the lungs hyperventilate (breath rapidly) to decrease CO₂ in the plasma and kidneys save and excrete HCO₃^- into the blood plasma to increase it's pH and neutralise the acid.

Thus, the correct option is a.