Identify the statements which are true with respect to the function of a nephron.
1. Approximately 1500ml - 1600 ml of blood is filtered by the kidneys per minute.
2. Proximal Convoluted Tubule absorbs nearly 70-80 percent of electrolytes and water.
3. Nearly all the filtered essential nutrients are absorbed by the Distal Convoluted Tubule.
4. Collecting ducts allow passage of small amounts of urea into medullary interstitium to keep up osmolarity
Choose the correct answer from the options given below:
1
1 and 3
2
2, 3 and 4
3
1, 2 and 3
4
2 and 4