Question

what is a partially permeable membrane

Answer 1

Answer:

They are membranes which allow only selected items to pas though it

Answer 2

$\bold{\underline{\underline{Hello\:Brainly\:User!}}}$

☯ A N S W E R :-

✏A membrane that is selectively permeable, i.e. being permeable to only certain molecules and not to all molecules.

• An example of such membrane is the cell membrane wherein it allows passage of only certain types of molecules by diffusion and occasionally by facilitated diffusion.

❇️ Let's go deep into the topic!

↪ What is a partially permeable membrane BBC Bitesize?

• This membrane controls what goes into and out of the cells. Some substances, such as gases and water, can pass across the membrane easily by diffusion.

• This is why the membrane is partially permeable - it controls which substances can travel across it easily.

↪ Is a partially permeable membrane needed for osmosis?

• Osmosis is the diffusion of water molecules, from a region of higher concentration to a region of lower concentration, through a partially permeable membrane.

• Partially permeable membranes are also called selectively permeable membranes or semi-permeable membranes.

↪Why can't proteins pass through a partially permeable membrane?

• The membrane is selectively permeable because substances do not cross it indiscriminately. Some molecules, such as hydrocarbons and oxygen can cross the membrane.

• Transport proteins make passage possible for molecules and ions that would not be able to pass through a plain phospholipid bilayer.

✔ For understanding some more better pictures are attached to above attachment.

$\huge{\boxed{\boxed{HOPE\:IT\:HELPS\:YOU}}}$