Question

A liquid X of colour Y circulates in the human body only in one direction from body tissues to the heart. Among other things, liquid X contains germs from cells and dead cells. The liquid 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?

Answer 1

Answer:

1•)blood that to deoxygenated blood

2.)colour is red due to presence of haemoglobin

3)Z are non granular WBC called lymphocyte

those kills the bacteria and maintain immunity

4)is second case the component similar to blood is lymph

5 colourless because show absence of haemoglobin

hope so helpful