Step 1: Kidney Function:
Kidneys remove nitrogenous wastes (like urea) and maintain water and salt balance. When kidneys fail, these wastes accumulate in the body, which can be life-threatening.
Step 2: Dialysis:
Dialysis is an artificial process of purifying blood when kidneys cannot function properly.
The process using a dialysis machine is specifically called Haemodialysis.
Step 3: Explanation of Options:
Dialyzer → The actual machine used in dialysis.
Haemodialysis → Correct name of the purification process.
Dialysate → The fluid used in dialysis.
Cellophane → Material used in dialysis membrane.
Step 4: Final Answer:
The purification of blood by dialysis machine is called Haemodialysis.