From the standpoint of chemistry, photosynthesis can be defined as the reductive carboxylation of organic substrates carried on by chlorophyll-containing biological cells capable of using light as their energy source.
(photosynthesis; can be defined; as the reductive carboxylation of organic substrates) (organic substrates; carried on; by chlorophyll-containing biological cells capable of using light as their energy source)
photosynthesis organic substrates
can be defined carried on
as the reductive carboxylation of organic substrates
by chlorophyll-containing biological cells capable of using light as their energy source