Uric acid is the chief nitrogenous component of the excretory products of 

1. man                             

2. earthworm

3. cockroach                     

4. frog

Subtopic:  Nitrogenous Excretory Products |
 68%
NEET - 2009
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Which one of the following pair of items correctly belongs to the category of organs

mentioned against it?

1. Analogous organs - Thorn of Bougainvillea and tendrils of Cucurbita

2. Vestigial organs - Nictitating membrane and blind spot in human eye

3. Excretory organs - Nephridia of earthworm and Malpighian tubules of cockroach

4. Homologous organs - Wings of honey bee and wings of crow 

Subtopic:  Nitrogenous Excretory Products |
 86%
From NCERT
NEET - 2008
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A person who is on a long hunger strike and is surviving only on water, will have:

1. More sodium in his urine

2. Less amino acids in his urine

3. More glucose in his blood

4. Less urea in his urine

Subtopic:  Autoregulation of GFR |
 57%
NEET - 2007
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Angiotensinogen is a protein produced and secreted by:

1. Macula densa cells

2. Endothelial cells (cells lining the blood vessels)

3. Liver cells

4. Juxtaglomerular (JG) cells

Subtopic:  Autoregulation of GFR |
NEET - 2006
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Excretion in tadpole is

(1) ammonotelic

(2) ureotelic

(3) urecotelic

(4) none of these

Subtopic:  Nitrogenous Excretory Products |
 72%
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In the presence of vasopressin, the greatest fraction of filtered water is absorbed in 

1. Loop of Henle

2. Proximal convoluted tubule

3. distal convoluted tubule

4. collecting tubule

Subtopic:  Autoregulation of GFR |
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Trimethylamine oxide is an excretory product in

1. fresh water teleosts

2. marine teleosts

3. marine invertebrate

4. none of these.

Subtopic:  Nitrogenous Excretory Products | Osmoregulation |
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Which of the following are uricotelic animals?

1. Rohu and frog

2. Camel and frog 

3. Lizard and crow

4. Earthworm and eagle 

Subtopic:  Nitrogenous Excretory Products |
 76%
AIIMS - 2002
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A person passes much urine and drinks much water but his blood glucose level is normal.

This condition may be the result of:

1. A reduction in insulin secretion from pancreas

2. A reduction in vasopressin secretion from posterior pituitary.

3. A fall in the glucose concentration in urine

4. An increase in secretion of glucagon

Subtopic:  Autoregulation of GFR |
 68%
AIIMS - 2003
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Which one of the following statements is correct with respect to salt water balance inside the body of living organisms?

1. When water is not available camels do not produce urine but store urea in tissues.
2. Salmon fish excretes lot of stored salt through gill membrane when in fresh water.
3. Paramecium discharges concentrated salt solution by contractile vacuoles.
4. The body fluids of fresh water animals are  generally hypotonic to surrounding water.
Subtopic:  Nitrogenous Excretory Products | Osmoregulation |
AIIMS - 2005
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