2. 1 Partner Questions What is needed to make a movie? Who is involved in making a movie? What actions need to be taken in order to complete a movie?

3. 2 How Does a Cell Work? The way in which a movie is made is similar to how a cell functions All the parts must work together in order to create the finished product -movie making = movie -cell = protein

4. 3 Section 7-2: Cell Structure

5. 4 Plant Cell Animal Cell Centrioles Nucleolus Nucleus Nuclear envelope Rough endoplasmic reticulum Golgi apparatus Smooth endoplasmic reticulum Mitochondrion Cell Membrane Ribosome (free) Ribosome (attached) Nuclear envelope Ribosome (attached) Ribosome (free) Smooth endoplasmic reticulum Nucleus Rough endoplasmic reticulum Nucleolus Golgi apparatus Mitochondrion Cell wall Cell Membrane Chloroplast Vacuole

6. 5 ProkaryotesEukaryotes Cell membrane Contain DNA Nucleus Endoplasmic reticulum Golgi apparatus Lysosomes Vacuoles Mitochondria Cytoskeleton Animal CellsPlant Cells Centrioles Cell membrane Ribosomes Nucleus Endoplasmic reticulum Golgi apparatus Lysosomes Vacuoles Mitochondria Cytoskeleton Cell Wall Chloroplasts Venn Diagrams

7. 6 Centrioles Nucleolus Nucleus Nuclear envelope Rough endoplasmic reticulum Golgi apparatus Smooth endoplasmic reticulum Mitochondrion Cell Membrane Ribosome (free) Ribosome (attached) Animal Cell Structure

8. 7 Three Major Parts 1. Cell Membrane 2. Cytoplasm 3. Nucleus

9. 8 Is a thin, flexible barrier around the cell Controls what enters and exits a cell (selectively permeable) Made of proteins and 2 layers of lipids (bilayer) Cell Membrane

10. 9 Part of cell outside the nucleus Clear, jelly-like material within cell membrane Liquid environment for chemical reactions to take place Allows for movement within the cell Cytoplasm

11. 10 Controls most cell processes Contains DNA (genetic material) -DNA found in chromatin Chromatin = granular material seen in nucleus Chromatin condenses to form chromosomes (control traits) Nucleus: The Control Center

12. 11 Nucleolus Is a small dense region in the nucleusIs a small dense region in the nucleus Makes ribosomes, which make proteinsMakes ribosomes, which make proteins

13. 12 Surrounds the nucleus Has nuclear pores that allow material to move into and out of the nucleus Nuclear Envelope

14. 13 Organelles = “little organs” Very small size Can only be observed under a microscope Have specific functions Found throughout cytoplasm

15. 14 Ribosomes Make proteins = protein factories of the cell Found on rough endoplasmic reticulum

16. 15 Smooth & Rough Endoplasmic Reticulum Smooth ER lacks ribosomes -Has enzymes used to make lipids and detoxify drugs Rough ER has ribosomes on its surface that make proteins, which are sent out of the cell Is an internal membrane transport system

17. 16 Smooth & Rough Endoplasmic Reticulum (continued)

18. 17 Golgi Apparatus Stack of flattened membranes (like pancakes)Stack of flattened membranes (like pancakes) Modify, sort, and package proteins made by the rough ERModify, sort, and package proteins made by the rough ER -attach carbohydrates & lipids to proteins -attach carbohydrates & lipids to proteins Aid in secretionsAid in secretions -transport vesicle pinch off ends -transport vesicle pinch off ends Transport vesicle

19. 18 Golgi Apparatus (continued)

20. 19 Lysosomes = Cleanup Crew Filled with digestive enzymesFilled with digestive enzymes Break down food into useful particlesBreak down food into useful particles Also break down worn- out cell organellesAlso break down worn- out cell organelles

21. 20 Vacuoles Storage spaces within cells Hold either food or water Usually small in animal cells

22. 21 Convert chemical energy stored in food into compounds that are more convenient for the cell to use Have inner and outer membranes Have own DNA = organelle DNA Mitochondria: Cell Powerhouse

23. 22 Cytoskeleton Network of protein filaments that helps the cell to maintain its shape. -Also involved in movement Principle protein filaments –Microfilaments –Microtubules

24. 23 Microfilaments / Microtubules Microfilaments made of protein called actin –Used for movement Microtubules made of protein called tubulin –Maintain cell shape –Important in cell division

25. 24 Cell membrane Endoplasmic reticulum Microtubule Microfilament Ribosomes Mitochondrion Cytoskeleton

26. 25 Centrioles / Cilia / Flagella Centrioles, cilia, and flagella are all made of microtubules Centrioles  Help to organize cell division Only in animal cells Cilia / Flagella  Allow cells to swim rapidly through liquid