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  1. In C3 plants, the first stable product of photosynthesis during the dark reaction is
    1. Malic acid
    2. Oxaloacetic acid
    3. 3-phosphoglyceric acid
    4. Phosphoglyceraldehyde
Correct Option: C

3-phosphoglyceric acid, a 3 carbon compound is the first product formed in the C3 cycle. It is then converted to glyceraldehyde 3-phosphate. Oxaloacetic acid, 4 carbon compound is the first product formed in C4 cycle. It is then converted to malic acid.



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