Mineral Nutrition Question 7
7. Best defined function of Manganese in green plants is:
[2012]
(a) Photolysis of water
(b) Calvin cycle
(c) Nitrogen fixation
(d) Water absorption
Show Answer
Answer : a
Hints & Solution
(a) The best defined function of manganese is in the splitting of water to liberate oxygen during photosynthesis. It is absorbed in the form of manganese ions $(Mn^{2+})$. It activates many enzymes involved in photosynthesis, respiration and nitrogen metabolism.
