1. Plant Cells Do Now:

2. The opposite of what happens in a mitochondria: Photosynthesis

3. Where does it all happen? The Chloroplasts! (In eukaryotes, anyway) Don’t Forget The video

5. Chloroplasts Absorb Light Energy

6. Free-living chloroplasts? Not quite… Chloroplast (from eukaryotic plant cell) Cyanobacterium (prokaryote)

7. Other Plastids

8. The Big Picture Chloroplasts build organic molecules by REDUCING the number of oxygen atoms bonded to carbon, using light energy. Mitochondria add oxygen to carbon when they break it down, by OXIDIZING it. This is called aerobic respiration

9. Reduced Compounds = FOOD Reduced compounds contain a lot of energy, and fewer C-O bonds. example: (octane / gasoline) CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 3 example: (glucose) C 6 H 12 O 6 Oxidized compounds contain less energy, and more C-O bonds. example: (carbon dioxide) CO 2

10. What else is so special about plant cells? Large, Central Vacuoles can take up most of The cell! It stores water, And some minerals

11. Anything Else? Yup – The Cell Wall

12. When you hear “Plant Cell Wall,” think Cellulose!