1. http://koning.ecsu.ctstateu.edu/cell/cell.html

2.  All living things are made up of cells.  Cells are the smallest working units of all living things.  All cells come from preexisting cells through cell division.

3. A cell is the smallest unit that is capable of performing life functions.

4. Amoeba Proteus Plant Stem Red Blood Cell Nerve Cell Bacteria

5. Prokaryotic Eukaryotic

6.  Do not have structures surrounded by membranes  Few internal structures  One-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

7.  Contain organelles surrounded by membranes  Most living organisms PlantAnimal http://library.thinkquest.org/C004535/eukaryotic_cells.html

8. http://web.jjay.cuny.edu /~ acarpi/NSC/images/cell.gif

9. http://waynesword.palomar.edu/images/plant3.gif

10. Organelles

12.  Outer membrane of cell that controls movement in and out of the cell  It is semi-permeable i.e. let some substances to pass through while stops others. http://library.thinkquest.org/12413/structures.html

13.  Most commonly found in plant cells & bacteria  Made of a rigid material called cellulose  Supports & protects the cells http://library.thinkquest.org/12413/structures.html

15.  Directs cell activities  Separated from cytoplasm by nuclear membrane  Contains genetic material - DNA

16.  In nucleus  Made of DNA  Contain instructions for traits & characteristics http://library.thinkquest.org/12413/structures.html

17.  Gel-like mixture  Surrounded by cell membrane  Site for chemical reactions such as respiration

18.  Membrane-bound sacs for storage and digestion  Contains water solution  Help plants maintain shape  Some animal cells may have tiny vacuoles http://library.thinkquest.org/12413/structures.html

19.  Usually found in plant cells  Contains green chlorophyll  Where photosynthesis takes place http://library.thinkquest.org/12413/structures.html

20.  Cells with modified or improved designs  To enable them to perform a specific function

21.  The following types of animal cells have adapted in order to better perform their function.  White blood cells  Red blood cells  Nerve cells  Ciliated epithelial cells  Smooth muscle cells

23.  The following plant cells have adapted to do their job more efficiently  Root hair cells  Palisade mesophyll cells  Spongy mesophyll cells

25.  A group of identical cells performing the same function form a tissue  Tissues of several type work together to make an organ  Some organs and tissues form organ systems  All organ systems work in harmony for the well being of the organism