1. ... the chemistry of living things.
Biochemistry ... C O
... the chemistry of living things. H

2. There are only 106 kinds of stuff in the world.

3. The chemical reaction that occurs in your cells when you use food energy is called ...
Cellular Respiration- converting calories of glucose energy to energy for your body.

4. Do you Remember???
Fats- 10% of diet. needed in small amounts for healthy cells.
Protein- 20% of diet. used to build human protein.
Carbohydrates- 70% of diet. digested to glucose. Used for energy.

5. Cellular Respiration- converts glucose to energy
glucose = sugar ( C6H12O6)
C H O + 6O CO + 6H O + Energy 2 2 6 12 6 2
Note: Glucose is what our digestive
system turns
Carbohydrates into!!

6. All the energy we use for cellular respiration orginally came from the sun.
Plants have the ability to capture light energy from the sun and convert it to chemical energy(food). This process is called ...

7. Photosynthesis 6 H O + 6 CO C H O + 6 O
Turning Light Energy to Food Energy
6 H O + 6 CO C H O O 2 6 12 6 2 2
Does this equation look familiar to you?
Where have I seen these symbols before?

8. Photosynthesis is just the opposite of...
6 H O + 6 CO C H O O 2 2 2 6 12 6
Cellular Respiration
C H O + 6 O H O + 6 CO
How totally cool!!! 2 6 6 2 2 12

9. and... C H O + 6 O 6 H O + 6 CO ... I’ll scratch yours!!
You scratch my back...
6 H O + 6 CO C H O O 2 2 2 6 12 6
and...
C H O + 6 O H O + 6 CO I’ll scratch yours!! 2 6 6 2 2 12

10. Biochemistry
Isn’t Nature Cool!

11. Biomass- total weight of organisms in an ecosystem

12. In Mono Lake, could 100 KG of algae support:
100 KG of brine shrimp?
No, only 10 KG
Could 10 KG support 10 KG of California Gulls?
No, only 1 KG

13. 10% Rule- Each trophic level gets only 10% of the total biomass of the level below it.

14. Energy Pyramid- diagram showing how energy(and biomass) is lost as it moves up the trophic levels.

15. What Trophic Level Should We Eat At???