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ICSE Class 10 Biology Question 20 of 30

Solved Sample Paper 3 — Question 15

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Question 5(v)

The diagram given below is of Malpighian capsule. Answer the questions that follows.

The diagram is of Malpighian capsule. Name the parts labelled 1, 2 and 3. Define ultrafiltration. Name the fluid entering the renal tubule. Biology Sample Paper Solved ICSE Class 10.

(a) Name the parts labelled 1, 2 and 3.

(b) Define ultrafiltration.

(c) Name the fluid entering the renal tubule.

Answer

(a) Parts labelled 1, 2 and 3 are:

  • 1 → Afferent arteriole
  • 2 → Efferent arteriole
  • 3 → Bowman's capsule

(b) The blood flows through the glomerulus under great pressure which is much greater than in the capillaries elsewhere. The high pressure causes the liquid part of the blood to filter out from the glomerulus into the renal tubule. This filtration under extraordinary force is called Ultrafiltration.

(c) Glomerular filtrate