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Posted by U15498447 (U15498447) on Sunday, 11th November 2012
hi i was wondering what the difference is between the cell membrane and the cell wall
Posted by LittleMissConfused (U14877585) on Sunday, 11th November 2012
Cell wall holds the cell together and cell membrane acts like the 'brain' of the cell
Posted by The Bitesize Science Teacher (U14392404) on Sunday, 11th November 2012
Nice try but you'll always lose marks if you say 'brain' when talking about a cell.
All cells have a cell membrane. It has channels and pores that let some substances in or out, but not others (it is selectively permeable or partially permeable). The cell membrane is made of phospholipids (a type of fat), proteins and cholesterol.
Plant cells have a cell wall. This goes outside the cell membrane and is made of tough cellulose.
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