Cell organelles each have a specific function in order for
            the cell to be able to carry out its life activities. They are present in Eukaryotic
            cells. The nucleus contains the hereditary information in the form of chromosomes, which
            directs the production of proteins in the cell. The nucleolus manufacturers the
            ribosomal RNA. The cell membrane is selectively permeable and allows the passage of
            certain materials in or out of a cell. The cytoplasm is the liquid between the membrane
            and the nucleus, composed of mainly water, where the organelles may be found. Vacuoles
            are for storage and digestion. Lysosomes contain enzymes which can be used to break down
            old, worn out cells. Golgi apparatus packages cell secretions and makes them ready to be
            delivered outside or inside the cell. Endoplasmic reticulum are tubules for
            intracellular transport. Proteins are folded here. Ribosomes manufacture proteins
            according to the messenger RNA instructions, copied from the DNA. Mitochondria, are
            organelles where cellular respiration occurs resulting in the production of A.T.P. which
            is used by the cell for its energy. If this is an animal cell, centrioles are present
            which aid a cell during cell division, in the formation of a spindle. If this is a plant
            cell, there will be a cell wall, outside of the cell membrane, for protection and for
            support. There will be chloroplasts which contain chlorophyll, a photosynthetic pigment
            which allow radiant energy to be absorbed and photosynthesis to occur, resulting in the
            production of glucose. All of these and other organelles are essential for the cell to
            properly function.
Tuesday, May 8, 2012
How do the cell organelles work together in order for a cell to function properly?
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