Q. Oxygen which is liberated during photosynthesis, comes from
A) Carbon cells
B) Spongy cells
C) Palisade cells
D) Bundle sheath cells
Explanation
Oxygen, which is liberated during photosynthesis comes from water. $4H_{2}O\ \rightleftharpoons 4H^{+} + 4OH^{-}$ $4OH^{-}\overset{Mn^{+},CI^{-}}{\rightarrow}2H_{2}O + O_{2} \uparrow + \ 4e^{-}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.