My cell is the animal cell It really depends on which cell you are talking about - different cells do different things. Such as skin cells. They form a barrier on the outside of the body which protects the organs and tissues inside. It stops them getting damaged by bumps and knocks and also prevents bacteria and viruses from getting into your body. The cells structure, contains the Cell Membrane keeping the cell together and controlling what substances go in and out, Cytoplasm is the water-rich matrix within a cell that contains and surrounds the other cell contents. Nucleolus is a small region that is made up of RNA and protiens, it also produces ribosomes. Mitochondria burns food molecules to release energy. This energy is used by cells to do work. This work may be building new molecules which have a particular function in the body, or it may be to produce movement. Ribosomes are often attached along the length of the ER. These manufacture proteins which pass into the inner part......
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