Components of Blood - Part 1

Which of these are Components of Blood?

• Red blood cells

• White blood cells

• Platelets

• Plasma

Match the percentage composition of Blood with the components

• Less than 1%

• Plasma

• 44%

• Platelets.

• Less than 1%

• Red blood cells (RBCs)

• 55%

• White blood cells (WBCs)

Why is Blood important?

_______ transports oxygen to the cells

_______ helps protect the body from infection

Red blood cells contain a chemical which gives blood its red colour. It helps red blood cells absorb oxygen.

Name the chemical that Red blood cells contain.

WBCs are red in colour

• True
• False

They prevent or stop bleeding by causing blood to clot.

• WBCs

• RBCs

• Plasma

• Platelets

Blood Plasma is the liquid which contains all the other components of blood.

• True
• False

Organize these options into the right categories

Groups:

(a) Red blood cells

,

(b) White Blood cells

,

(c) Platelets

,

(d) Plasma

• They prevent or stop bleeding by causing blood to clot, or form into a gel at the wound

• It is the liquid which contains all the other components of blood

• They produce chemicals called antibodies to fight against infections and bacteria

• Contain a chemical called Haemoglobin which gives blood its red colour and helps absorb oxygen

• Forms 44% of the blood composition

• It absorbs waste products from cells, especially carbon dioxide

• It is mostly composed of water and is pale yellow in colour

• They do not have haemoglobin and are not red in colour

• They attack and destroy any foreign materials such as infectious viruses and bacteria

• They absorb oxygen in the lungs and release it as they pass through the body