Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below:
- Both A and R are true but R is NOT the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
- Both A and R are true and R is the correct explanation of A.
Answer
(2) A is true but R is false.
Solution
Assertion: Nephrons are of two types, cortical and juxta medullary, depending on the position of their loop of Henle in the cortex and medulla — true.
Reason: Cortical nephrons have a short loop of Henle that dips only slightly into the medulla, whereas juxta medullary nephrons have a very long loop of Henle running deep into the medulla — so the Reason is false.
Hence, A is true but R is false.
Answer: (2)