Geography PYQ 574 of 587 · Environment & Ecology · Miscellaneous

Which of the following is not a component of chlorophyll?

  1. ACalcium
  2. BCarbon
  3. CMagnesium
  4. DHydrogen
  5. Enone of the above/more than one of the above

66th B.P.S.C. Re-Exam (Pre), 2020

Show answer and explanation

Correct answer: (a) Calcium

Explanation

Chlorophyll (leaf-green) is a complex organic pigment. This pigment is the reason for the green color of leaves. Magnesium is the major element of chlorophyll. Besides magnesium, carbon, hydrogen, nitrogen, and oxygen are also present in chlorophyll.

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