Question 36
Photosynthesis and Plant NutritionA young plant showing yellow leaves is likely to be deficient in
- A.calcium
- B.magnesium
- C.potassium
- D.boron
- E.molybdenum
Show the answer and explanation
Answer: B (magnesium)
Explanation
Magnesium is part of the chlorophyll molecule, so without it leaves cannot make chlorophyll and turn yellow (chlorosis).