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Plasma membrane and cell wall

What is the main difference among plasma membrane and cell wall?

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Plasma membrane and cell wall is not similar thing. Plasma membrane also termed as cell membrane, is the external membrane common to all living cells and it is made up of a phospholipid bilayer, embedded proteins and certain appended carbohydrates.

Since cell membranes are fragile, in some kinds of cells there are even outer structures which support and save the membrane, similar to the cellulose wall of plant cells and the chitin wall of certain fungi cells. Most bacteria too existed an outer cell wall made up of peptidoglycans and other organic substances.

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