We appreciate your visit to The dialyzer contains what allows wastes and excess water out but keeps blood cells in A Semi permeable membrane B Perforated sieve C Activated charcoal. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Final answer:
The dialyzer contains a semi-permeable membrane that allows waste products like urea to pass through while retaining larger blood components such as red blood cells. This membrane function is key to dialysis, facilitating the removal of waste from the blood while keeping essential blood cells in. Therefore, the correct option is A. Semi-permeable membrane.
Explanation:
The dialyzer contains a semi-permeable membrane which allows wastes and excess water out but keeps blood cells in. This semi-permeable membrane is designed to be permeable to small solute molecules like urea, allowing them to pass through into the dialysate. At the same time, it's impermeable to larger molecules, such as red blood cells, which are too large to pass through the membrane pores. This ensures that waste materials are removed while the essential components of the blood are retained.
When discussing how solutes differ between the upper and lower compartment of a dialyzer, the concentration of urea in the blood would be higher than in the dialysate, allowing diffusion of urea out of the blood into the dialysate. This process is a fundamental principle of dialysis, utilizing the osmotic pressure to facilitate the purification of the blood.
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