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प्रश्न
What are the components of blood?
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उत्तर १
- The main components of blood are -
- plasma
- blood cells (Red blood corpuscles):
- Plasma is the fluid part of blood in which the blood cells are suspended. The plasma contains water, minerals, nutrients, proteins, etc.
- Blood cells are of three types -
- RBCs (Red blood cells),
- WBCs (White blood cells)
- blood platelets.
उत्तर २
There are four components of blood:
- Plasma is a liquid part of blood which is yellowish in colour and contains 90% water. It contains food, enzymes, wastes proteins etc.
- Red blood cells are disc-shaped cells containing red-coloured pigment called haemoglobin in it. Haemoglobin helps in the transportation of oxygen.
- White blood cells are the fighting cells which protect us against bacteria and foreign materials causing infections.
- Platelets help in clotting of the blood.
संबंधित प्रश्न
| The liquid connective tissue A circulates in our body continuously without stopping. This tissue contains a pigment B which imparts it a colour C. The tissue A consists of four components D, E, F and G. The component D fights infection and protects us from diseases. The component E helps in the clotting of tissue A if a person gets a cut. The component F is a liquid which consists mainly of water with many substances dissolved in it and component G carries oxygen from the lungs to all the parts of the body. |
- What is (i) tissue A (ii) pigment B, and (iii) colour C?
- Name (i) D (ii) E (iii) F, and (iv) G.
- Name one substance (other than oxygen) which is transported by tissue A in the human body.
- Which two components of tissue A are the cells without nucleus?
- Name any two organisms ( animals) which do not have liquid like A in their body.
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