Question

what is plasma membrane made of ? Also give a reason why it is called as semi-permeable membrane ?​

Answer 1

Plasma membranr is made of Proteins and lipids.

It is called semi-permieable or selectively permieable becoz it allows only selected particles to get inside and out of cell.

Hope it helped you :)

Answer 2

Answer:

plasma membrane made lipid and protein is also called semi permeable membrane because it in and out of waste material