Question

If 8 photons are required to produce one molecule of O2, how many photons are required to produce one molecule of glucose?

(a) 6

(b) 8

(c) 48

(d) 12

This question was addressed to me during an interview.

This intriguing question comes from ATP Synthesis by Photophosphorylation topic in portion Oxidative Phosphorylation and Photophosphorylation of Biochemistry

Answer 1

The correct choice is (c) 48

To explain I would say: 6 molecules of O2 must be produced during the production of glucose, so 6×8=48 photons are required for producing one molecule of glucose.