Photosynthesis and cellular respiration both include water in their summary reactions. Which statement correctly identifies the role of water in these two processes? a Photosynthesis and cellular respiration both use water to help release oxygen. b Photosynthesis and cellular respiration both use oxygen and release water. c Cellular respiration uses water and releases oxygen, while photosynthesis uses oxygen and releases water. d Cellular respiration uses oxygen and releases water, while photosynthesis uses water and releases oxygen.

Answer 1

The correct statement that identifies the role of water in photosynthesis and cellular respiration is: d.

In detail:

• Photosynthesis: Water (H₂O) is used as a reactant in the process, and oxygen (O₂) is released as a byproduct.
• Cellular respiration: Oxygen (O₂) is used as a reactant and water (H₂O) is released as a product.

So, cellular respiration uses oxygen and releases water, while photosynthesis uses water and releases oxygen.