1. Energy in Living Things
Do Now: (on handout)
Group the 8 different organisms shown into categories. You may use as many different categories as you like, but should have a reason for placing each member where you do.

2. Autotrophs vs. Heterotrophs
Autotrophs are organisms (like plants) that make their own food (“-troph” means “eater”, autotroph means “self-eater”)
Heterotrophs get energy by ingesting other organisms (i.e animals) (“-hetero” = “different”)
Try to decide which of the 8 are autotrophs!

3. Most Autotrophs do Photosynthesis

4. Heterotrophs take in chemical energy, not light energy.

6. Photosynthesis as a Process

7. Cellular Respiration
Heterotrophs can’t make their own food, like autotrophs can.
The process of cellular respiration is how organisms get the energy they need from the food they take in.

8. Cellular Respiration
How heterotrophs get energy out of the organic chemicals they eat

9. The Carbon Cycle of Life
C6H12O6
Photo-synthesis
Respiration
ATP Energy Produced
CO2
Light Energy

11. Check your Notes
The following terms should appear somewhere in your notes for today:
Autotroph
Heterotroph
Photosynthesis
Light reactions, Calvin Cycle
Cellular Respiration
Glycolysis, fermentation, and aerobic respiration