NEET Zoology
Concentration Of Urine I
Low Priority
Consistency: 10%
Weightage: 2 / 20 Yrs
High-Yield Trend
1
2020 1
2019 Questions 2 MCQs
01
PYQ 2019
easy
zoology ID: neet-201
Which of the following factors is responsible for the formation of concentrated urine?
| 1. | Hydrostatic pressure during glomerular filtration. |
| 2. | Low levels of antidiuretic hormone. |
| 3. | Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys. |
| 4. | Secretion of erythropoietin by Juxtaglomerular complex. |
1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2020
easy
zoology ID: neet-202
The increase in osmolarity from outer to inner medullary interstitium is maintained due to:
| (i) | Close proximity between Henle's loop and vasa recta |
| (ii) | Counter current mechanism |
| (iii) | Selective secretion of HCO3¯ and hydrogen ions in PCT |
| (iv) | Higher blood pressure in glomerular capillaries |
| 1. | Only (ii) | 2. | (iii) and (iv) |
| 3. | (i), (ii) and (iii) | 4. | (i) and (ii) |
1
(1)
2
(2)
3
(3)
4
(4)