Lymph | Blood | ||
---|---|---|---|
1. | It is a colourless fluid that does not contain RBCs. | 1. | It is a red-coloured fluid that contains RBCs. |
2. | It contains plasma and lesser number of WBCs and platelets. | 2. | It contains plasma, RBCs, WBCs, and platelets. |
3. | It helps in body defence and is a part of the immune system. | 3. | It is associated with the circulation of oxygen and carbon dioxide. |
4. | Its plasma lacks proteins. | 4. | Its plasma has proteins, calcium, and phosphorus. |
5. | It transports nutrients from the tissue cells to the blood, through lymphatic vessels. | 5. | It transports nutrients and oxygen from one organ to another. |
6. | The flow of lymph is slow. | 6. | The flow of blood in the blood vessels is fast. |
Figures 9.20(a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ?