- Exam
- NEET
- Year
- 2023
- Subject
- Zoology
- Chapter
- Excretory Products and their Elimination
NEET 2023 · Zoology · Excretory Products and their Elimination
Given below are statements: one is labelled as Assertion A and the...
Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Nephrons are of two types: Cortical and Juxta medullary, based on their relative position in cortex and medulla.
Reason R: Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle.
In the light of the above statements, choose the correct answer from the options given below:
Options
- AA is false but R is true
- BBoth A and R are true and R is the correct explanation of A
- CBoth A and R are true and R is the NOT the correct explanation of A
- DA is true but R is false
Correct answer
D. A is true but R is false
Step-by-step solution
On the basis of location, the nephrons, are of two types, in majority of nephrons, the loop of Henle is too short and extends only very little into the medulla. Such nephrons are called cortical nephrons and form 85% of the total nephrons. In some of the nephrons, the loop of Henle is very long and runs deep into the medulla. These nephrons are called juxta medullary
nephrons and form 15% of the total nephrons.