1. Photosynthesis

2. “Process by which energy is converted into food”
Takes place in chloroplasts
CO2 + H2O + energy  O2 + C6H12O6

3. Importance of Photosynthesis
Source of food
Source of oxygen
Stores carbon dioxide

5. Site of Photosynthesis
Leaves

6. Two Types of Reactions in Photosynthesis
Chlorophyll – main pigment which allows photosynthesis to occur
Light Dependent
a. uses light to release oxygen and create ATP (energy)
b. occurs in cholorplast
Light Independent
a. uses energy to to produce food (does not need light)

7. Cellular Respiration v. Photosynthesis
Both biochemical pathways
“when the products of a reaction are used as the reactants of another reaction. Neither process could run without the other”
C6H12O6 + O2  CO2 + H2O + ATP (energy)
CO2 + H2O + energy  O2 + C6H12O6

8. Autotrophs (producers)
a. make glucose
b. plants
c. give us food
Heterotrophs (consumers)
a. obtain glucose by eating other things
b. depend on autotrophs for glucose
c. animals, fungi, bacteria