Describe a selectively permeable membrane?

Answer 1

You should have a large Anatomy text explaining the phospholipid bilayer - there is lots to know.

Answer 2

The cellular membrane, that's interior the cellular wall and outdoors the cytoplasm, controls what leaves and enters the cellular by way of selective permeability based on the damaging and valuable quotes of the ingredients' ions. The cellular membrane has 2 bipolar layers on its floor observed as polar, "head" and nonpolar, "tail." The polar helps water into the cellular and the nonpolar would not enable the water into the cellular. some sunstances have a greater valuable charge ion than a damaging charge, this potential that the substance would be absorbed greater at as quickly as into the cellular, maximum excellent to overdose of the substance, however the cellular has a staggering protein that controls the No. of that substance to be absorbed interior the cellular observed as the Sodium-potassium pump. This protein takes out 3 sodium ions, becaues it has a very good charge and absorbs potassium ions, via fact it has a damaging charge. it is how selective permeability works.

Answer 3

A selectively permaeable membrane will only allow certain substances to pass through it. It can be based on size alone. Some large ions may not pass through the membranes of cells while smaller ones can. It can also be based on hydrophilic/hydrophobic properties. Hydrophilic particles will not be able to go through a membrane that has hydrophobic properties. The same goes for hydrophobic particles with membranes with hydrophilic properties.

Answer 4

It's a membrane which only allows certain sized or shaped molecules to pass through.

Answer 5

It is like a filter. It can allow things to pass through but can also block other things from passing through.

Answer 6

Sounds like you are talking about a vagina, and I am going to report you to yahoe

Answer 7

you're a nursing student and don't know this? gooood luck there.