1. Photosynthesis & Respiration Connections
Do Now:
1. Write the balanced equation for photosynthesis. How can it be changed into the equation for respiration?

2. Simplified Carbon Cycle
CO2 + H2O
Energy Out
Energy In
Photosynthesis
(plant growth)
Respiration and
combustion O2
in the atmosphere
Organic Compounds
(food, organisms, fossil fuels, etc.)

3. Simplified Carbon Cycle
CO2 + H2O
in the atmosphere
Energy Out
Energy In
Photosynthesis
(plant growth)
Respiration and
combustion
CO2 + H2O
in the atmosphere
Organic Compounds
(food, organisms, fossil fuels, etc.)

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

6. Chemosynthesis: When autotrophs use Energy other than light to make Carbs.

7. Life is the Carbon Cycle
ENERGY AND CO2 RELEASED
(burning, or respiration)
Inorganic Carbon
CO2
Organic Carbon
(like fossil fuels
and biomass)
ENERGY AND CO2 REQUIRED
(photosynthesis)

8. Water Cycle and Plants
Plants get the water they need for photosynthesis from roots in the soil.
Plants lose water by transpiration, which is evaporation from the leaves.

9. Oxygen gets Cycled too

10. Algae Reduced the Carbon…

11. …and Animals Release it.

12. The atmosphere retains heat.
How much depends on the chemical properties of the atmosphere
CO2 in the atmosphere absorbs heat radiation

14. Key Ideas: The Carbon Cycle
For each process, indicate where the carbon begins and where it ends up. Also include the type of carbon involved.