Question

Choose the correct statements from the following about dialysis.

• A. The set-up consists of a number of tubes with fully permeable lining.
• B. The set-up consists of a number of tubes with semi - permeable lining.
• C. Waste products diffuse into the dialysing fluid from blood.
• D. Glucose, salts, minerals and amino acid are reabsorbed.

Answer 1

Answer: (B), (C)

The correct options are
B The set-up consists of a number of tubes with semi - permeable lining.
C Waste products diffuse into the dialysing fluid from blood.

$\bullet$ The set-up consists of a number of tubes with semi-permeable lining suspended in a tank filled with dialysing fluid. The blood is made to pass through these tubes. The semi-permeable lining is used to contain the target proteins within the blood. The pore size of the membrane is such that blood cells and proteins are large enough and so can not diffuse from blood to the fluid. Toxins, urea and other particles pass to the dialysing fluid, cleaning the blood. Reabsorption step is not involved in hemodialysis method.