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L

C
P
R

Opposite Processes

Photosynthesis and cellular respiration are opposite processes.

The products from one process are used as the raw materials for the other process. Energy is
required for photosynthesis, but energy is released during cellular respiration.

Photosynthesis

6 CO + 6 H O light energy C H O + 6 O 2
2
2
6
12
6
carbon water glucose oxygen
dioxide chlorophyll

Respiration

C H O + 6 O 6 CO + 6 H O + energy
12
2
2
6
2
6
glucose oxygen carbon water
dioxide
ATP

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