Question

State the role and functions of the following
a) Blood
b) WBC
Write the functions of two upper chambers of human heart.

Answer 1

Ans-1. i) Blood circulates in our body. Its function is to transport nutrients, oxygen, carbon dioxide, urea and hormones to different part of the body.

ii) WBC is a type of blood corpuscle found in blood. It kills germs present in blood and tissues.

Ans-2. The following functions of two upper chambers, i.e. left atrium and right atrium of human heart are given below:-

1. Left atrium recives oxygenated blood from pulmonary vein.

2. Right atrium recives deoxygenated blood from vena cava.

Answer 2

Answer:

blood has the function to transport things like RBCs, WBC, hormones, etc

WBC - It kills antigens by producing antibodies

human heart has two upper chambers- right atrium which collects the blood brought by inferior vencava and left atrium collects blood brought by pulmonary vein

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