Which of the following nitrogenous wastes is most toxic form and requires a lot of water for removal?

1. Ammonia

2. Urea

3. Uric acid

4. Creatinine

Subtopic:  Nitrogenous Excretory Products |
 96%
From NCERT
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Which of the following nitrogenous wastes is least toxic?

1. Uric Acid

2. Urea

3. Creatinine

4. Ammonia

Subtopic:  Nitrogenous Excretory Products |
 89%
From NCERT
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Ammonotelic organisms are not

1. Bony Fishes

2. Aquatic Amphibians

3. Aquatic Insects

4. Marine fishes

Subtopic:  Nitrogenous Excretory Products |
 83%
From NCERT
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Ammonotelic organisms excrete out

1. Ammonia

2. Ammonium ions

3. Ammonium sulfate

4. Ammonium nitrate

Subtopic:  Nitrogenous Excretory Products |
 61%
From NCERT
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Ammonia is converted into urea in which of the following organs of Ureotelic organisms?

1. Liver

2. Kidney

3. Urinary bladder

4. Gut

Subtopic:  Nitrogenous Excretory Products |
 87%
From NCERT
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Kidney matrix retains some amount of urea to

1. Maintain a desired osmolarity

2. Maintain metabolism

3. Maintain balance of the body

4. Maintain micturition

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 92%
From NCERT
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Which of the following is not uricotelic?

1. Reptiles

2. Birds

3. Land snails

4. All insects

Subtopic:  Nitrogenous Excretory Products |
 85%
From NCERT
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The invertebrates have which of the following excretory structures?

1. Simple Tubular forms

2. Complex tubular organs

3. Kidneys

4. Interstitial lamina

Subtopic:  Nitrogenous Excretory Products |
 88%
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 |
 77%
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 |
 58%
From NCERT
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