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A liquid X circulates in the human body ...

A liquid X circulates in the human body only in one direction : from body tissue to the heart. Among other things, liquid X contains germs from cells and dead cells. The liquids X is cleaned of germs and dead cells by a special type of white blood cells called Z. This cleaned liquid is then put into blood circulatory system in subclavian veins.
(a) What is (i) liquid X, and (ii) colour Y ?
(b) What are Z ?
(c) The liquid X is somewhat similar to a component of blood. Name this component
(d) Why is liquid X not red ?

Text Solution

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The correct Answer is:
(a) (i) Lymph (ii) Light yellow (b) Lymphocytes (c) Plasma (d) It does not contain red blood cells having the red pigment haemoglobin
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