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Cell Structure & Function

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Presentation on theme: "Cell Structure & Function"— Presentation transcript:

1 Cell Structure & Function http://koning.ecsu.ctstateu.edu/cell/cell.html

2 Red is your subject (left side) Navy Blue is your info (right side)

3 Cell Theory 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.

4 Definition of Cell A cell is the smallest unit that is capable of performing life functions

5 Examples of Cells Amoeba Proteus Plant Stem Red Blood Cell Nerve Cell Bacteria

6 Cell Parts aka Organelles

7 Cell Membrane Outer membrane of cell that controls movement in and out of the cell Double layer Nickname: Border Patrol Analogy: Border http://library.thinkquest.org/12413/structures.html

8 Cell Wall Most commonly found in plant cells Supports & protects cells Nickname: Tree Bark Analogy: brick wall http://library.thinkquest.org/12413/structures.html

9 Nucleus Directs cell activities Contains genetic material – DNA Nickname: Control Center Analogy: City Hall

10 Cytoplasm Gel-like mixture Surrounded by cell membrane Nickname: Jello Analogy: atmosphere (air)

11 Ribosomes Each cell contains thousands Make proteins Found on Endoplasmic Reticulum & floating throughout the cell Nickname: Ribs!! Analogy: Lumber Mill http://library.thinkquest.org/12413/structures.html

12 Mitochondria Produces energy through chemical reactions – breaking down fats & carbohydrates Nickname: Powerhouse Analogy: Power Plant http://library.thinkquest.org/12413/structures.html

13 Vacuoles Membrane-bound sacs for storage, digestion, and waste removal Usually contains water Much larger in plant cells Nickname: Ziploc bag Analogy: Water Tower http://library.thinkquest.org/12413/structures.html

14 Chloroplast Usually found in plant cells Contains green chlorophyll Where photosynthesis takes place Nickname: greenhouse Analogy: solar panels http://library.thinkquest.org/12413/structures.html

15 Lysosome Digestive organelle for proteins, fats, and carbohydrates Transports undigested material to cell membrane for removal Cell breaks down if lysosome explodes Nickname: Garbageman Analogy: Waste Management http://library.thinkquest.org/12413/structures.html

16 “Typical” Animal Cell http://web.jjay.cuny.edu /~ acarpi/NSC/images/cell.gif

17 http://waynesword.palomar.edu/images/plant3.gif “Typical” Plant Cell


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