1. Immune system is an important system in the body. Discuss thefollowings:
1) The role of antibodies and antigens in blood typing?
2) The types of immunity in relation to diseaseprotection?  .
2. Is there any other factor besides the nephron which controlthe reabsorption of water and certain molecules for osmoregulation?Substantiate your answer with reasons? .
3. Analyze the specific role of liver in each of the following:1. Carbohydrate, lipid and protein metabolism, 2. Processing ofdrugs and hormones, 3. Excretion of bilirubin, 4. Synthesis of bilesalts and 5 Activation of vitamin D? .