Question

The best-defined role of manganese in green plants is
A. Nitrogen fixation
B. Water absorption
C. Photolysis of water
D. Calvin cycle

Answer 1

Manganese has the phenomenon of breaking apart water into hydrogen and oxygen within the illuminated chloroplast. It acts as an important cofactor. Manganese the substance with the symbol Mn and number 25. it's not found as a free element in nature. It's often found in minerals together with iron. Manganese could be a transition metal with A multifaceted array of commercial alloy uses, particularly in chrome steel.

Complete answer:
Manganese is used for the photolysis of water to produce oxygen and electrons during the light reaction of photosynthesis. It is the phenomenon of breaking up water into hydrogen and oxygen in the illuminated chloroplast. It acts as an essential cofactor. In the splitting of water to liberate oxygen during photosynthesis, the best-defined function of manganese. Many enzymes involved in photosynthesis have been activated by it, respiration and nitrogen metabolism.
For the process of photolysis of water, the mineral ions essential are manganese, chlorine, and calcium.
The process of photosynthetic water oxygen to dioxygen under proton release takes place via a sequence of four equivalent redox steps in a Manganese containing unit.
Photolysis, the chemical process by which molecules are broken down into smaller units to the absorption of light The splitting of decomposition of chemical compounds by means of light energy of photons supplement. For example, the photolysis of water molecule in photosynthesis occurred under the influence of light

Hence, option C: Photolysis of water is the correct answer.

Note: Photolysis refers to the splitting of water using light energy. It occurs in the chloroplast granum during the light reaction in photosynthesis. There is the requirement of light energy for the photolysis of water, also an oxygen-evolving complex and electron carrier.