NEETBotanyPhotosynthesis in Higher Plants
What happens to a proton when the H carrier passes its electron to the electron carrier on the inner side of the membrane?
Options
- AIt is transported to the stroma
- BIt is used to reduce NADP+
- CIt is released into the inner side or the lumen side of the membrane
- DIt is converted to water
Correct answer
C. It is released into the inner side or the lumen side of the membrane
Step-by-step solution
As electrons move through the photosystems, protons are transported across the membrane. This happens because the primary accepter of electron which is located towards the outer side of the membrane transfers its electron not to an electron carrier but to an H carrier. Hence, this molecule removes a proton from the stroma while transporting an electron. When this molecule passes on its electron to the electron carrier on the inner side of the membrane, the proton is released into the inner side or the lumen side of