NEET Biology ยท Medium

Photosynthesis in Higher Plants: Yield Logic MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Yield LogicMediumQuestion 13846

Question

Most dry mass of a plant ultimately comes from:

  1. A
    Carbon fixed from atmospheric CO2
    Correct
  2. B
    Minerals alone
  3. C
    Soil humus directly
  4. D
    Oxygen absorption

Correct answer

Carbon fixed from atmospheric CO2

Explanation

Organic matter is largely built from carbon assimilated during photosynthesis.