- 1(current)
Q. No.Read the following statements and choose the option that correctly states them as true (T) or false (F) with respect to the human excretory system:
(a) (b) (c)
1. F T T
2. T F F
3. F F T
4. F T F
| (a) | The cortex extends in between the medullary pyramids as calyx. |
| (b) | Vasa recta is absent or highly reduced in cortical nephrons. |
| (c) | Kidney is situated between the levels of the 12th thoracic and 3rd lumbar vertebra close to the dorsal inner wall of the abdominal cavity. |
1. F T T
2. T F F
3. F F T
4. F T F
Subtopic: Â Human Kidney: Location & Cut Section |Â Nephron Part 1 |Â Nephron Part 2 |
 80%
Level 1: 80%+
Hints
How many of the given statements are correct with respect to human urinary system?
(a) In humans, ammonia produced by metabolism is converted into urea in the kidneys and then excreted out by them.
(b) The outer layer of kidney is a tough capsule.
(c) Inside the kidney, there are two zones, an outer medulla and an inner cortex.
(d) The cortex extends in between the medullary pyramids as renal columns called columns of Bertini.
(e) In kidney, there is a broad funnel-shaped space called the renal pelvis with projections called calyces.
1. Five
2. Three
3. Four
4. Two
(a) In humans, ammonia produced by metabolism is converted into urea in the kidneys and then excreted out by them.
(b) The outer layer of kidney is a tough capsule.
(c) Inside the kidney, there are two zones, an outer medulla and an inner cortex.
(d) The cortex extends in between the medullary pyramids as renal columns called columns of Bertini.
(e) In kidney, there is a broad funnel-shaped space called the renal pelvis with projections called calyces.
1. Five
2. Three
3. Four
4. Two
Subtopic: Â Human Kidney: Functions |Â Human Kidney: Location & Cut Section |Â Disorders of Excretory System |
 60%
Level 2: 60%+
Hints
Consider the given statements carefully.
(a) Malpighian tubules help in the removal of nitrogenous wastes and osmoregulation in Periplaneta.
(b) Flame cells are the excretory structure in Planaria as well as rotifers.
(c) Each kidney of an adult human measures 0.1 to 0.12 meters in width.
(d) Kidneys are situated between the level of the last thoracic and fourth lumbar vertebra.
Select the option with correct statements only:
1. (a), (b), (c), and (d)
2. (a) and (b)
3. (a), (c), and (d)
4. (a), (b), and (c)
(a) Malpighian tubules help in the removal of nitrogenous wastes and osmoregulation in Periplaneta.
(b) Flame cells are the excretory structure in Planaria as well as rotifers.
(c) Each kidney of an adult human measures 0.1 to 0.12 meters in width.
(d) Kidneys are situated between the level of the last thoracic and fourth lumbar vertebra.
Select the option with correct statements only:
1. (a), (b), (c), and (d)
2. (a) and (b)
3. (a), (c), and (d)
4. (a), (b), and (c)
Subtopic: Â Nitrogenous Excretory Products |Â Human Kidney: Location & Cut Section |
 76%
Level 2: 60%+
Hints
Match the items in Column - I with those in Column - II:
| Column I | Column II | ||
| (a) | Podocytes | (i) | Crystallised oxalate |
| (b) | Protonephridia | (ii) | Annelids |
| (c) | Nephridia | (iii) | Amphioxus |
| (d) | Renal calculi | (iv) | Filtration slits |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iv) | (ii) | (iii) | (i) |
Subtopic: Â Nitrogenous Excretory Products |Â Human Kidney: Location & Cut Section |Â Disorders of Excretory System |
 83%
Level 1: 80%+
NEET - 2019
Hints
Assertion (A): Kidneys play a very important role in maintaining constant composition of blood irrespective of the nature of the food/fluid intake.
Reason (R): Kidney is an osmoregulator.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Kidney is an osmoregulator.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Human Kidney: Functions |Â Human Kidney: Location & Cut Section |
Level 4: Below 35%
Hints
| Assertion (A): | The part of nephron present in the cortical region of kidney are PCT, DCT and Malphighian body. |
| Reason (R): | PCT and DCT do not participate in the process of counter current mechanism. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Human Kidney: Location & Cut Section |Â Nephron Part 1 |
 77%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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