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Excretory Products and their Elimination

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Differentiate between the following :
(b) Proximal and Distal convoluted tubules

Proximal
convoluted
ubule

Distal convoluted tubule

It has brush border epithlium. 

It has few short microvilli. 

 It connects the Bowman's capsule and Loop of henle It connects loop of Hnle and collecting duct. 
Diameter is larger Diameter is smaller. 

Active absorption of whole of glucose, most of amino acids and vitamin C. It also reabsorbs 70% of Na, 75% K and large amount of Ca+2. Urea is also reabsorbed.

Active absorption of some Na+, C1ions and water.

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Name three uricotelic animals.

The uricotelic animals are
1. Birds
2. Reptiles
3. Insects

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 What is uremia ?

Uremia is the accumulation of urea in the blood due to the malfunctioning of the kidneys. The urea accumulation is harmful and may lead to kidney failure. 

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What is Bowman's capsule?

The double walled cup like structure present at the starting of the renal tubule is Bowman's capsule. It encloses the glomerulus capsule. 
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What is glomerulonephritis ?

Glomerulonephritis is the inflammation of glomeruli of the kidney. 
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What is the ultimate method for the correction of acute renal failure?

Kidney transplant.
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