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प्रश्न
Why is the colour of the blood-red?
Why is blood red?
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उत्तर
Blood is red because it contains haemoglobin, a red-coloured pigment present in red blood cells that carries oxygen.
संबंधित प्रश्न
What are the components of blood?
What makes the blood look red?
Which is the correct sequence of blood flow?
Match the following.
| 1. Leukaemia | (a) Thrombocytes |
| 2. Platelets | (b) Phagocyte |
| 3. Monocytes | (c) Decrease in leucocytes |
| 4. Leucopenia | (d) Blood Cancer |
| 5. AB blood group | (e) Allergic condition |
| 6. O blood group | (f) Inflammation |
| 7. Eosinophil | (g) Absence of antigen |
| 8. Neutrophils | (h) Absence of antibody |
All veins carry deoxygenated blood.
Who discovered the Rh factor? Why was it named so?
Mature RBC in mammals does not have cell organelles.
Direction: In each of the following questions a statement of assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Mark the correct statement as.
Assertion: RBC plays an important role in the transport of respiratory gases.
Reason: RBC does not have cell organelles and a nucleus.
What prevents the backflow of blood inside the heart during contraction?
What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?
