Question

Assertion (A): the main excretory unit of kidney is nephron. Reason (R): It carries out filtration, selective absorption and tubular secretion to form urine in kidney.

(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false
(d) A is false and R is also false​

Answer 1

Answer:

a) both a and r are true and R is crt explanation

Answer 2

(a) Both A and R are true is the correct explanation of A is the correct answer.

Explanation:

• The nephron is the excretory unit in the kidney.
• The main function of Nephron is to convert blood into the urine.
• This includes four mechanisms are Filtration, reabsorption, secretion, and excretion.
• There are around 1000000 nephrons in every human kidney.
• Hence the acceleration and reason are correct. The Nephron is the excretory unit of the Kidney and it carries out filtration, selection absorption, and tubular secretion to form urine in the kidney.