Question
Explain the difference between ultrafiltration and selective reabsorption.
✓
Answer
Differences between Ultrafiltration and Selective Reabsorption:
| S. No. | Ultrafiltration | Selective Reabsorption |
| 1. | It is between Bowman's capsule and glomerulus. | This process takes place between the body of the renal tubule and the capillaries of the efferent arteriole wrapped around it. |
| 2. | This action occurs due to variation in blood pressure. | This action occurs due to lack of water in the blood. |
| 3. | This action occurs due to variation in blood pressure. In this, beneficial and harmful substances, due to blood pressure, get filtered through the capillaries and enter Bowman's capsule in a dissolved state in water. | In this, the beneficial substances and water are reabsorbed from the body of the renal tubule and come into the cells of the efferent arteriole. Harmful substances are not absorbed and urea and harmful salts diffuse from the blood capillaries into the body of the renal tubule. |
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