known primary photochemical processes one common example processes excited state proton transfer photochemical reactions examples photochemical reactions '''photosynthesis''' plants use solar energy convert carbon dioxide water glucose oxygen human formation vitamin exposure sunlight '''bioluminescence''' ''eg'' fireflies enzyme abdomen catalyzes reaction produced light polymerizations started photoinitiators decompose upon absorbing light produce free radicals radical polymerization photodegradation many substances eg polyvinyl chloride fp medicine bottles often made darkened glass prevent drugs
Natural science Chemistry Photochemistry