2.  Producers get their
energy from the sun.
 Producers convert this
light energy into
stored chemical
energy (glucose).
 This process is called
photosynthesis.

3. Photosynthesis
Light energy Stored energyGlucose

4.  Consumers get their
energy from the
producers.
 Consumers convert
stored chemical
energy (glucose) into
usable chemical
energy (ATP).
 This process is called
cellular respiration.

5. Cellular
Respiration
Stored energy Usable energyATP

6. Photosynthesis
Water
Carbon
Dioxide
Sunlight
Sugar
Oxygen
H2O
CO2
O2
C6H12O6

7. Photosynthesis
6 H2O + 6 CO2 + energy (sun) → C6H12O6 + 6 O2
SunlightH2O CO2
O2
C6H12O6

15. PHOTOSYNTHESIS
LIGHT PHASE DARK PHASE
THYLAKOID STROMA

17. LIGHT PHASE
THYLAKOID

18. DARK PHASE
STROMA

19. LIGHT PHASE
DARK PHASE

20. THYLAKOID
STROMA

22.  Chlorophyll photoactivation
 Sunlight excites the electrons

23.  Photolysis
 Oxygen is released
H2O
O2
H2 + NADP -> NADPH

25.  Photophosphorylation
 ADP + P = ATP