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Multiple choice

Mg is an activator of

  1. Rubisco

  2. PEP carboxylase

  3. Both

  4. None

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Magnesium (Mg) acts as an activator for both Rubisco (in the Calvin cycle) and PEP carboxylase (in C4 and CAM photosynthesis).

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