the differences is that semi- permeable only lets in and out molecules small enough to fit threw period selectively permeable has channel proteins that allow bigger molecules to fit threw.
Membranes can be classified as impermeable, permeable, semipermeable or selectively permeable.An impermeable membrane is that through which no substance can pass. Semipermeable membranes are those...
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...