Carbon dioxide is fixed in

Light reaction

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Dark reaction

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Aerobic respiration

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Anaerobic respiration

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Solution

The correct option is B Dark reaction
Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.

So, the correct option is 'Dark reaction'.

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In respiration, carbon dioxide is produced as a byproduct.

Glucose is oxidized into carbon dioxide, water and energy in __ respiration.

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