The following reaction occurs during photosynthesis in plants:
ATP + H₂O → ADP + P_i; ΔG = -30.5 kJ/mol
Is this an exergonic or endergonic process? Does it involve production of any high-energy molecule?

• A. The reaction is exergonic and doesn't involve the production of a high-energy molecule.
• B. The reaction is endergonic and does involve the production of any high-energy molecules.
• C. The reaction involves the production of high-energy molecules but isn't either exergonic nor endergonic.
• D. The reaction neither involves production of any high-energy molecules nor falls under either category.

Answer: (A)