Question
Describe composition of blood and explain function of its components?
✓
Answer
The main components of bloods are:
- Plasma: The fluid part of the blood is called plasma.
- Red Blood Cells: ($RBC$) contains a red pigment called haemoglobin. Haemoglobin bind with oxygen and transports it to all the parts of the body and ultimately to all the cells. It will be difficult to provide oxygen efficiently to all the cells of the body without haemoglobin. The presence of haemoglobin makes blood appear red.
- White Blood cells: ($WBC$) fight against germs that may enter our body thus provide an effective defence against infection, disease etc.
- Platelets: They are another type of cells in blood, responsible for the formation of dark red clot in the blood when it comes in contact with air. They help in preventing excess bleeding from the injuries by plugging the skin openings or cuts with a thick dark red clot.
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