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Please answer correct! I will mark brainliest.
In Cellular Respiration,
1. Where did the glucose come from?

2. Where did the O2 come from?

3. Where did the O2 go?

4. Where did the CO2 come from?

5. Where did the CO2 go?

6. Where did the H2O come from?

7. Where did the H2O go?
I would really appreciate it. Thank you!