Question

When we say a nephron is the structural and functional unit of the kidneys, we mean that
(P) The kidney is made up of many nephrons.
(Q) The filtration of blood that occurs in the kidneys is because of what the nephrons do.
(R) Urea formation occurs in the nephrons.

• A. Only P and Q
• B. Only Q and R
• C. Only P and R
• D. P, Q and R

Answer 1

The correct option is A Only P and Q

The kidney is composed of many units of nephrons which are known as the functional unit of kidneys. The nephrons are responsible for the filtration of blood and formation of urine in order to remove the wastes from the blood. The urea formation takes place in the liver. The proteins are digested and converted to ammonia and then urea is formed in the liver.

The statements P and Q are correct and S is incorrect.

Thus, the correct answer is option A.