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Q: Are the membranes in a dialysis machine premeable or selectively permeable?
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How is dialysis membrane selectively permeable?

a dialysis membrane is selectively permeable, it is used in experiments to simulate cellular membranes, and it is permeable to water but not to sucrose.


Are artificial membranes in a dialysis machine permeable or selectively permeable?

Artificial membranes in a dialysis machine are selectively permeable because it doesn't all cells to go through it. It doesn't allow blood cells to fit through the dialysis but it allows waste and bacteria to pass.


Are the membranes in a dialysis machine permeable or selectively permeable?

The dialysis membrane is selectively permeable because it doesn't allow all cells to go through it. Think of it as a kidney. When blood is sent to the kidney, the blood cells cannot fit through the dialysis inside the kidney, but the waste and bacteria in the cells do. So, The dialysis membrane is selectively permeable.


Which part of a kidney dialysis apparatus actually takes the place of the nephron?

tubing made of selectively permeable membrane


What is an example of a selectively permeable?

A selectively permeable cell membrane allows certain molecules or ions to pass through it by means of active or passive transport. The most common example is the phospholipid bilayer cell membrane that surrounds all of our body cells. The inner membranes of an egg are also selectively permeable membranes.


What involves the movement of solutes across a selectively permeable membrane by the process of difussion?

facilatated diffusion


What physical property of the dialysis tubing might explain its differential permeability?

Dialysis tubing is an impermeable membrane/containment vessel that is stratified with microscopic holes which restrict certain molecules or particles from diffusing through them. This leads dialysis tubing to serve as a selectively permeable membrane because it selectively prevents certain molecules from crossing the membrane based on the size of the molecules. (Typically water and glucose will diffuse through, whereas starch and potassium iodide will not.


Can glucose pass through a membrane?

Dialysis membranes are typically not permeable to sucrose. Removing sugar from the blood can be dangerous as it can lead to hypoglycemia. Sugar molecules are too large to pass through dialysis membranes.


What is required for osmosis and dialysis?

a semi permeable membrane


What does a dialysis bag represent?

A semi permeable plasmodial membrane


Is dialysis tubing permeable to iodine?

No, tubing is not permeable at all, although the dialyzer is permeable to many solutes, depending on the type of dialyzer prescribed by a physician.


Why is a dialysis membrane not permeable to sucrose?

No; the sucrose molecule (as a disaccharide) is too large to pass through by passive diffusion. Glucose, on the other hand, (a monosaccharide) is able to permeate the dialysis tubing. In the body, glucose/sucrose is transmitted across membranes though the use of active/facilitated diffusion.