Nitrogenous waste is excreted in the form of pellet or paste by:
1. Pavo 2. Ornithorhynchus
3. Salamandra 4. Hippocampus

Subtopic:  Nitrogenous Excretory Products |
 75%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following hormones reduces blood pressure?
1. Antidiuretic hormone 
2. Atrial Natriuretic factor 
3. Aldosterone 
4. Angiotensin-II

Subtopic:  Autoregulation of GFR |
 84%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Terrestrial adaptations necessitated the production of : 

1. Highly toxic nitrogenous wastes like urea and uric acid 
2. Lesser toxic nitrogenous wastes like urea and uric acid 
3. Lesser toxic nitrogenous wastes like ammonia and urea 
4. Highly toxic nitrogenous wastes like ammonia and urea 

Subtopic:  Nitrogenous Excretory Products |
 86%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Select the correct statements.
a. Angiotensin II activates the cortex of adrenal gland to release aldosterone.
b. Aldosterone leads to increase in blood pressure.
c. ANF acts as a check on renin-angiotensin mechanism.
d. ADH causes vasodilation.
e. Vasopressin is released from adenohypophysis.

Choose the most appropriate answer from the options given below :
1. (a), (b) and (e) only
2. (c), (d) and (e) only
3. (b), (c) and (d) only
4. (a), (b) and (c) only
Subtopic:  Autoregulation of GFR |
 72%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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 & 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:
1. (A) is False, (R) is True.
2. Both (A) and (R) are True and (R) correctly explains (A).
3. Both (A) and (R) are True but (R) does not correctly explain(A).
4. (A) is True, (R) is False.
Subtopic:  Human Kidney: Location & Cut Section |
 80%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

Which of the following statements are correct?
A: An excessive loss of body fluid from the body switches off osmoreceptors.
B: ADH facilitates water reabsorption to prevent diuresis.
C: ANF causes vasodilation.
D: ADH causes increase in blood pressure.
E: ADH is responsible for decrease in GFR.
Choose the correct answer from the options given below:
1. C, D and E only 2. A and B only
3. B, C and D only 4. A, B and E only
Subtopic:  Osmoregulation | Disorders of Excretory System |
 79%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A):  Ascending limb of the loop of Henle is impermeable to water and allows transport of electrolytes actively or passively. 
Reason (R):  Dilution of filtrate takes place due to efflux of electrolytes in the medullary fluid

In light of the above statements, choose the correct answer from the options given below:
1.  (A) is True, (R) is False
2.  (A) is False, (R) is True
3.  Both (A) and (R) are True and (R) is the correct explanation of (A)
4.  Both (A) and (R) are True but (R) is not the correct explanation of (A)
Subtopic:  Function of the tubules |
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

Arrange the events of Renin-Angiotensin mechanism in correct sequence
A: Activation of JG cells and release of renin
B: Angiotensin II activated release of aldosterone
C: Fall in glomerular blood pressure
D: Reabsorption of Na+ and water from distal convoluted tubule
E: Angiotensinogen is converted to Angiotensin I and then to Angiotensin II
Choose the correct answer from the options given below:
1. (C), (A), (E), (B), (D) 2. (A), (D), (E), (C), (B)
3. (A), (D), (C), (B), (E) 4. (B), (A), (E), (D), (C)
Subtopic:  Autoregulation of GFR |
 84%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

Select the correct statement:

1. Atrial Natriuretic Factor increases the blood pressure.
2. Angiotensin II is a powerful vasodilator.
3. Counter current pattern of blood flow is not observed in vasa recta.
4. Reduction in Glomerular Filtration Rate activates JG cells to release renin. 

Subtopic:  Autoregulation of GFR |
 79%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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)

Subtopic:  Concentration of Urine: I |
 61%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh