Who demonstrated that photosynthesis is essentially a light-dependent reaction in which hydrogen from a suitable oxidisable compound reduces carbon dioxide to carbohydrates?

Jan Ingenhousz

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Joseph Priestly

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Cornelius van Niel

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Von Mayer

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Solution

The correct option is C Cornelius van Niel
Cornelius van Niel (1897-1985), based on his studies on green and purple bacteria, demonstrated that photosynthesis is essentially a light-dependent reaction in which hydrogen from a suitable oxidisable compound reduces carbon dioxide to carbohydrates.

Equation given by Cornelius van Niel can be expressed by:
$2 H_{2} A + C O_{2} \to 2 A + C H_{2} O + H_{2} O$ (In presence of light)

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