Question

multiple choice question
in van niels generalized equation of photosynthesis, which of the following is the donor of electrons?
o 2a
o o₂
o h₂a
o co₂

Explanation:

Van Niel's generalized equation of photosynthesis shows that hydrogen - containing compounds ($\text{H}_2\text{A}$) act as electron donors. Different organisms can have different $\text{H}_2\text{A}$ compounds. For example, in plants water ($\text{H}_2\text{O}$) is the electron - donor, but in some bacteria other compounds can serve this role.

Answer:

C. $\text{H}_2\text{A}$