Page 4 - Osmosis and Diffusion - FULL
P. 4

L


        A        P     C    S




        The structures within the cell are known as organelles which carry out specific functions.




                 The nucleus is the control center of the cell. It houses the nucleolus
                 and genetic material (chromatin) used for directing cell functions.

                                                                   The nuclear envelope is a membrane which
                                                                   surrounds and protects the nucleus.


                         Nuclear pores allow materials to                     The nucleolus produces ribosomes.
                         pass in and out of the nucleus.
                                                                                          Ribosomes are factories
                Endoplasmic reticulum is a transport                                       that produce proteins
                        cell membrane
                system of tubes and channels                                                 needed by the cell.
                connecting organelles within
                the cell.

        Cytoplasm is a                                                chromatin
        gel-like substance
        containing the
        organelles.








        Mitochondrion is a rod-like
        structure that converts the
        energy in food molecules to
        a form that the cell can use.





                                                     Lysosomes contain                Golgi bodies direct different
                                                     chemicals (enzymes) that         materials made in the cell to
                                                     break down and recycle           where they need to go.
                                                     harmful materials.





                                                  The cell membrane is the outer protective layer of
                                                  all animal cells. It consists of two layers composed
                                                  of proteins and lipids. A cell membrane is known
                                                  as a semipermeable membrane since it only allows
                                                  certain substances to move into and out of the cell.


        2                          © Copyright NewPath Learning                www.newpathlearning.com
   1   2   3   4   5   6   7   8   9