Question

which process requires water as a reactant in order to occur?
mitosis
photosynthesis
dna replication
cellular respiration

Explanation:

In photosynthesis, water is split during the light - dependent reactions. Mitosis is cell division and water is not a key reactant. DNA replication involves enzymes and nucleotides, not water as a reactant. Cellular respiration produces water as a product rather than using it as a reactant.

Answer:

photosynthesis