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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 63 of 200

Q63
General ScienceBiology
The element that is required for the synthesis of chlorophyll is
  1. a.Mn
  2. b.Fe
  3. c.Mg
  4. d.Mo

No option is correct as printed — this question is disputed. WBPSC awarded the mark to all candidates: two correct options — Mg (C) is part of chlorophyll and Fe (B) is required for its synthesis.

Magnesium is the central atom of the chlorophyll molecule, but iron is also essential for chlorophyll synthesis (its deficiency causes chlorosis even though Fe is not part of the molecule). With both (B) and (C) defensible, the Commission awarded the mark to all candidates.

Q62 Whole paperQ64
The element that is required for the synthesis of chlorophyll is — WBCS Main Examination 2023 Q63 | Prostuti360°