Question

Nephron is a unit of filtration in kidneys that filters waste material. It selectively reabsorbs or excretes water with the help of capillaries that surround it. What is the likely benefit of this?

Answer 1

The various benefits are:

• The nephrons are the main functional units responsible for production of urine. During urine formation, the nephrons selectively reabsorb huge amount of water, ions and molecules like glucose, etc.

• This helps in concentration of urine, so that excessive amount of water is not lost along with urine.

• Instead , the water absorbed during urine formation can go back to increase the volume of blood and maintain the adequate blood pressure.

• The various mechanisms by which urine is concentrated are : 1. COUNTER CURRENT MULTIPLIER 2. COUNTER CURRENT EXCHANGER .

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Answer 2

Answer:

It helps to uptake and store excess amount of water in the body for later use