1. A WEE BIT About CELLS…. Some stuff you NEED to know…

2. The Cell Theory All living things are MADE up of cells!

3. Continued… Cells are the basic units of structure and function of all living things!

4. Lastly… Cells come from pre-existing cells! Remember Redi? Maggots Munching Meat

5. Cells are either: PROKARYOTIC No Organelles No Nucleus Bacteria… EUKARYOTIC Have Organelles Have a Nucleus Plants, Animals, Fungi & Protists

6. Cells come in different Shapes “Square” “Rectangular” “Circular” “Odd…”

7. Cells come in different Sizes Smallest is bacteria Largest is nerve cell in giraffe’s neck

8. Plant Cell Organelles you NEED to KNOW! Cell Wall Cell Membrane (aka Plasma Membrane) Chloroplasts Nucleus Cytoplasm Ribosomes Mitochondria Vacuoles

9. Animal Cell Organelles you NEED to KNOW Cell Membrane (Plasma Membrane) Nucleus Cytoplasm Ribosome Mitochondria Lysosome Vacuoles Centrioles

10. Plant Cell

11. Animal Cell

12. Nucleus Control Center of Cell The “Brain” of the cell Houses Chromosomes (genetic code) which instruct all cell activities Instructions for STRANGER-C Surrounded by Nuclear Membrane Contains Nucleolus Which produces rRNA / Ribosomes

13. Cell Membrane (aka Plasma Membrane) Surrounds Cytoplasm Found in EVERY cell! Controls what enters and leaves cell Has NO control over water, gases, glucose Made of a lipid bi-layer with proteins floating in it and carbohydrate chains stuck on the outside of it

14. Cytoplasm Jelly-like “goo” inside the cell membrane Found in EVERY cell! Cushions and protects other organelles Always moving (streaming) in order to move materials around the cell

15. Ribosome Organelle responsible for protein synthesis Reads genetic code (RNA) to produce the type of protein needed at that moment

16. Mitochondria “Powerhouse” of the cell Organelle responsible for cell respiration (energy production) Changes glucose into ATP Mighty Mitochondria makes energy, Mighty Mitochondria makes ATP

17. Vacuole Storage area Plant cells have one or two large vacuoles to store water Animal cells have many small vacuoles to store food, waste, water…

18. Chloroplast Organelle responsible for photosynthesis Found in plants in green algae Contain the pigment Chlorophyll Capture sunlight (solar energy) and store it in the bonds of glucose

19. Cell Wall Non-living, protective barrier surrounding plant cells Made of Cellulose (a sugar) Gives support and structure to plants

20. Lysosome Organelle filled with digestive chemicals (enzymes) Destroys unwanted material “Lys” = “Destroy” Found only in Animal cells

21. Centriole Organelle which helps with cell division (cell reproduction) The “Spider-man” of the cell Found only in Animal cells

22. As for the others… Ribosomes make ‘em ER takes ‘em ER=Endoplasmic Reticulum Golgi packs and stacks What is this referring to?????

23. A video to help you remember… Cell Structure Video