Multiple choice

The first chemical compound of C4 pathway in photosynthesis is

  1. RuBP

  2. PEP

  3. oxaloacetic acid

  4. phosphoglycerate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the C4 pathway of photosynthesis, carbon dioxide is initially fixed in mesophyll cells by phosphoenolpyruvate carboxylase to form oxaloacetic acid, a four-carbon compound.

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