- 1(current)
Q. No.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
Consider the following four statements (A-D) about certain desert animals such as kangaroo rats:
| A. | they have a dark colour and a high rate of reproduction and excrete solid urine. |
| B. | they do not drink water, breathe at a slow rate to conserve water, and have their body covered with thick hairs. |
| C. | they feed on dry seeds and do not require drinking water. |
| D. | they excrete very concentrated urine and do not use water to regulate body temperature. |
Which two of the above statements for such animals are true?
| 1. | C and D | 2. | B and C |
| 3. | C and A | 4. | A and B |
Subtopic: Â Nitrogenous Excretory Products |
Level 3: 35%-60%
AIPMT - 2008
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): Insects are called uricotelic.
Reason (R): They absorb nitrogenous waste products and convert them into urea.
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. (A) is false, but (R) is true.
Reason (R): They absorb nitrogenous waste products and convert them into urea.
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. (A) is false, but (R) is true.
Subtopic: Â Nitrogenous Excretory Products |
 83%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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