Question

What is photochemical reaction​

Answer 1

Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules' absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules.

Examples of photochemical reactions

Photosynthesis: plants use solar energy to convert carbon dioxide and water into glucose and oxygen. Human formation of vitamin D by exposure to sunlight. Bioluminescence: e.g. In fireflies, an enzyme in the abdomen catalyzes a reaction that produced light.

Answer 2

Answer:

Chem: a reaction which requires a ligh source to react

Biology: the process by which plants synthesize glucose in the presence of sunlight.

Explanation:

photo - light