How are photosynthesis and cellular respiration related? a. cellular respiration is a simpler cycle within photosynthesis. b. the products of cellular respiration are the same as the reactants of photosynthesis. c. the reactants of cellular respiration are the same as the reactants of photosynthesis. d. photosynthesis is a simpler cycle within cellular respiration.

The correct answer would be b. the products of cellular respiration are the same as the reactants of photosynthesis. Here are the equations for each:

Photosynthesis:
6CO2 + 6H2O + sunlight --> C6H12O6 + 6O2
OR
6 carbon dioxide + 6 water + sunlight --> glucose + 6 oxygen

Cellular respiration:
C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP
OR
glucose + 6 oxygen --> 6 carbon dioxide + 6 water + energy

Notice how the products and reactants are switched? The only difference is that photosynthesis requires sunlight, while cellular respiration produces ATP. Hope this helped! :)

I believe the answer is b, The products of cellular respiration are the same as the reactants of photosynthesis :)

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