Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes (A, B, C) they give out?

A
AMMONOTELIC
B
UREOTELIC
C
URICOTELIC
1. Frog,
Lizards
Aquatic Amphibia,
Humans
Cockroach,
Pigeon
2. Aquatic
Amphibia
Frog, humans Pigeon,
Lizards,
Cockroach
3. Aquatic
Amphibia
Cockroach,
Humans
Frog,
Pigeon,
Lizards
4. Pigeon,
Humans
Aquatic Amphibia,
Lizards
Cockroach,
Frog
Subtopic:  Nitrogenous Excretory Products |
 80%
From NCERT
AIPMT - 2012
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The principal nitrogenous excretory compound in humans is synthesised.

1. in kidneys but eliminated mostly through liver

2. in kidneys as well as eliminated by kidneys

3. in liver and also eliminated by the same through bile

4. in the liver, but eliminated mostly through kidneys

Subtopic:  Nitrogenous Excretory Products |
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NEET - 2010
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Which of the following nitrogenous waste is least toxic and can be removed with minimum loss of water?

1. Urea

2. Ammonia

3. Degraded products of hormones

4. Uric acid 

Subtopic:  Nitrogenous Excretory Products |
 87%
From NCERT
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Consider the following statements :

I. Many bony fishes, aquatic amphibians, and aquatic insects are ammonotelic.

II. Mammals, many terrestrial amphibians, and cartilaginous fishes are ureotelic.

III. Reptiles, birds, land snails, and insects are uricotelic.

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Nitrogenous Excretory Products |
 81%
From NCERT
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Which is not correctly matched?

1.  Malpighian tubules - Cockroaches, Mosquito

2.  Antennal glands - Planaria, Crab

3.  Nephridia - Earthworm

4.  Protonephridia - Amphioxus

Subtopic:  Nitrogenous Excretory Products |
 78%
From NCERT
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Which one of the following characteristics is common in both humans and adult frogs?
1.  Internal fertilization
2.  Nucleated RBCs
3.  Ureotelic mode of excretion
4.  Four-chambered heart

Subtopic:  Nitrogenous Excretory Products |
 89%
From NCERT
AIPMT - 2012
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The production of urea and uric acid is because of

1. Conservation of water

2. Terrestrial adaptation

3. Terrestrial adaptation for conservation of water

4. Advancement of organism in comparison to all water animals

Subtopic:  Nitrogenous Excretory Products |
 73%
From NCERT
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Which of the following has not the protonephridia as an excretory organ?

1. Rotifers

2. Amphioxus

3. Planaria

4. Earthworm

Subtopic:  Nitrogenous Excretory Products |
 74%
From NCERT
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Which of the following is not the primary function of protonephridia?

1. Ionic volume regulation

2. Fluid volume regulation

3. Osmoregulation

4. Excretion

Subtopic:  Nitrogenous Excretory Products |
 50%
From NCERT
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Human excretory system does not involve

1. Urethra

2. Vestibule

3. Bladder

4. Kidneys

Subtopic:  Human Kidney: Functions |
 96%
From NCERT
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