A) nitrogen and phosphorus
B) magnesium and manganese
C) potassium and calcium
D) sulphur and iron
Correct Answer: B
Solution :
[b] Magnesium activates the enzymes of respiration, photosynthesis and is involved in the synthesis of DNA and RNA. Manganese activates many enzymes which are involved in photosynthesis, respiration and nitrogen metabolism.You need to login to perform this action.
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