Q4 of 95 Page 78

Name any four substances transported by blood.

Any four substances that are transported by blood are:

i. Digested food from the alimentary canal to the tissues.


ii. Oxygen from lungs to tissues.


iii. Carbon dioxide from tissues to lungs.


iv. Hormones secreted by endocrine glands to required organs


Note: Endocrine glands are specialized glands for secretion of certain chemicals which is required for the proper functioning of the body.


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2

In the diagrams, we conventionally show veins in blue. What is the actual colour of the blood flowing through the following?

(i) In arteries


(ii) In veins


(iii) In capillaries

 3

In a coloured diagram why do we generally show the pulmonary artery in blue and pulmonary vein in red colour?

 1

Name the following:

The yellow coloured fluid part of the blood.

 1

Name the following:

The respiratory pigment contained in RBCs.