Question

How many electrons and protons are produced during the photolysis of water?

(a) 4 electrons and 3 protons

(b) 1 electron and 2 protons

(c) 3 electrons and protons

(d) 4 electrons and 4 protons

The question was asked in final exam.

The above asked question is from Higher Plants Photosynthesis topic in portion Photosynthesis in Higher Plants of Biology – Class 11

Answer 1

Correct option is (d) 4 electrons and 4 protons

Explanation: Four electrons and four protons are produced at the end of the photolysis of water. Two molecules of water get converted into 4H^+ and 4e^– along with free oxygen. The ions used for this splitting is Mn^2+, Ca^2+, and Cl^–.