Question

Write a short note on Plasma Membrane or Cell Membrane.​

Answer 1

Answer:

The plasma membrane are also called as cell membrane ,it is the outer boundery of the cell

it transport material through it by selectively so it is also called as selectively premeable membrane .

Answer 2

Answer

$\bigstar$ In eukaryotes cell is surrounded by a membrane known as plasma membrane or cell membrane.

$\bigstar$ Plasma membrane is made up of lipids and proteins. Ratio of protein and lipids varies from cell to cell.

$\bigstar$ Human erythrocyte plasma membrane contains 52% protein and 40% lipids.

$\bigstar$ Membrane protein may be integral or peripheral.

$\bigstar$ Peripheral protein lie on the surface and integral protein are partially buried in the membrane.

$\bigstar$ This membrane is selective or semi permeable in nature.

$\bigstar$ Fluid mosaic model explains the selectively permeable nature of plasma membrane, protein molecules float as icebergs in a ocean of fluid lipid matrix.