Assimilatory power that is produced in the light reaction and used in Blackman’s reaction referes to the

Generation of ATP and

N A D P H_{2}

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Reduction of

C O_{2}

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Splitting of water

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Disintegration of plastids

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Solution

The correct option is A Generation of ATP and $N A D P H_{2}$
Assimilatory power is the power of plants in the form of ATP and $N A D P H_{2}$ to obtain food in the form of carbohydrates from the reduction of CO₂ during photosynthesis.
During the phase of photosynthesis that requires the invlovement of sunlight, also called as the light reaction, the assimilatory powers ATP and NADPH2 are generated along with the evolution of oxygen after the photolysis of water has occured. These assimilatory powers are utilized during the dark reaction phase of photosynthesis (also known as Blackman's reactions) in order to fix carbon dioxide by forming sugars.

Suggest Corrections

	Light reaction	Dark reaction
i	These are also called as biosynthetic phase	These are also called as photochemical phase
ii	These reaction occur over thylakoids.	These reaction occur in stroma of chloroplasts.
iii	These produce assimilatory power i.e. $N A D P H_{2}$ and ATP	These consume $N A D P H_{2}$ and ATP.
iv	These are direction dependent upon light.	These depend upon the products synthesised during light reaction