Question

Formation of concentrated (hyperosmotic) urine
in vertebrates generally depends on
(a) length of the proximal convoluted tubule
(b) length of Henle's loop
(c) podocytes of Bowman's capsule
(d) capillary network forming glomerulus

Answer 1

The formation of concentrated ( hyperosomatic) urine in vetebrates generally depend on

(b) length of Henle' s loop

*because the urine is concentrated through counter current mechanism which involves

• the loop of Henle

• the Vasa recta

• collecting tubules

• ducts

• and the interstitial fluid.

* Henle's loop is involved in osmoregulation and concentrating urine

Answer 2

Formation of concentrated (hyperosmotic) urine  in vertebrates generally depends on length of Henle's loop.

Option (C) is correct.

Explanation:

• The concentration of urine depends on the length of Henle's loop.
• The descending limb is impervious to electrolytes and water gets absorbed into the surrounding tissues.
• This makes the urine more thick and concentrated as it goes downward.
• Therefore, the longer Henle's loop is, the more concentrated the urine will be.

Thus Formation of concentrated (hyperosmotic) urine  in vertebrates generally depends on length of Henle's loop.

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