Photosynthesis In Higher Plants Question 2
Question: The oxygen produced during photosynthesis comes from photolysis of water was first time proved by [MP PMT 1984, 88, 95]
Options:
A) Ruben and Kamen
B) Robert Mayer
C) Malvin Calvin
D) Blackman
Show Answer
Answer:
Correct Answer: A
Solution:
Photolysis is occur in persence of light quanta and requires $ M{n^{++}} $ and $ C{l^{-}} $ ions as catalyst for water oxidising.
$ 4H_2O\xrightarrow{M{n^{++}}C{l^{-}}}4{{(OH)}^{-}}+4{H^{+}} $ Then H radicle formes water and $ O_2 $ as a by-product $ 4OH\xrightarrow{{}}2H_2O+O_2\uparrow $