Blackman
concluded that photosynthesis consists of an initial
set of what he called “light” reactions, that are largely independent
of temperature, and a second set of “dark” reactions,
that seemed to be independent of light but limited
by CO2. Do not be confused by Blackman’s
labels—the so-called “dark” reactions occur in the light
(in fact, they require the products of the light reactions);
their name simply indicates that light is not directly involved
in those reactions.