HW # 46 - Study your Venn Diagram and review today’s power point . Warm up

1. Week 13, Day Four HW # 46- Study your Venn Diagram and review today’s power point. Warm up What do the words Prokaryotic and Eukaryotic mean?

2. Warm up Response Prokaryotic- without a nucleus (no membrane bound organelles) Eukaryotic- contains membrane bound organelles

3. Homework Response/Check Did you complete your lab?

4. Goals for Today • Prokaryotic & Eukaryotic Cells • Plant & Animal cell comparison- Venn Diagram • icell on the iPad

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

6. 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.

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

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

9. Two Types of Cells Prokaryotic Eukaryotic

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

11. Eukaryotic • Contain organelles surrounded by membranes • Most living organisms Plant Animal http://library.thinkquest.org/C004535/eukaryotic_cells.html

12. Using what you learned from yesterday’s Plant/Animal lab AND what you learned today, write a two day lab conclusion. In class, we have been studying _________________. Specifically, we have been focusing on the difference between plant and animal cells. Before beginning yesterday’s lab, I thought that plant and animal cells were different because ___________. I also that that they were similar because _________________. Throughout the course of the activities, I did a lot of observing. I observed __________. I was doing this to see ___________. I also used the ipad to find out ___________. What I observed was _____________________ (2-3 sentences). Through these activities, I learned that the reason plant and animal cells are different is ______________. This shows me that _______________: I would like to learn more about this subject because __________________ . OR I still have a question about the topic we are studying. I am wondering ___________________________________.

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

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

15. Cell Parts Organelles

16. Surrounding the Cell

17. Cell Membrane • Outer membrane of cell that controls movement in and out of the cell • Double layer http://library.thinkquest.org/12413/structures.html

18. Cell Wall • Most commonly found in plant cells & bacteria • Supports & protects cells http://library.thinkquest.org/12413/structures.html

19. Inside the Cell

20. Nucleus • Directs cell activities • Separated from cytoplasm by nuclear membrane • Contains genetic material - DNA

21. Nuclear Membrane • Surrounds nucleus • Made of two layers • Openings allow material to enter and leave nucleus http://library.thinkquest.org/12413/structures.html

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

23. Nucleolus • Inside nucleus • Contains RNA to build proteins http://library.thinkquest.org/12413/structures.html

24. Cytoplasm • Gel-like mixture • Surrounded by cell membrane • Contains hereditary material

25. Endoplasmic Reticulum • Moves materials around in cell • Smooth type: lacks ribosomes • Rough type (pictured): ribosomes embedded in surface http://library.thinkquest.org/12413/structures.html

26. Ribosomes • Each cell contains thousands • Make proteins • Found on ribosomes & floating throughout the cell http://library.thinkquest.org/12413/structures.html

27. Mitochondria • Produces energy through chemical reactions – breaking down fats & carbohydrates • Controls level of water and other materials in cell • Recycles and decomposes proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

28. Golgi Bodies • Protein 'packaging plant' • Move materials within the cell • Move materials out of the cell http://library.thinkquest.org/12413/structures.html

29. Lysosome • Digestive 'plant' for proteins, fats, and carbohydrates • Transports undigested material to cell membrane for removal • Cell breaks down if lysosome explodes http://library.thinkquest.org/12413/structures.html

30. Vacuoles • Membrane-bound sacs for storage, digestion, and waste removal • Contains water solution • Help plants maintain shape http://library.thinkquest.org/12413/structures.html

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

32. Quick Review • Which organelle is the control center of the cell? Nucleus • Which organelle holds the cell together? Cell membrane • Which organelles are not found in animal cells? Cell wall, central vacuole, chloroplasts • Which organelle helps plant cells make food? Chloroplasts • What does E.R. stand for? Endoplasmic reticulum http://www.youtube.com/watch?v=rABKB5aS2Zg&NR=1