Which is a non-carbon source for glucose synthesis?

Everyday Science / Branch of Science — Multiple-choice practice

گلوکوز کی ترکیب کے لیے غیر کاربن ماخذ کون سا ہے؟

  1. A. Carbon dioxide (CO₂)
  2. B. Water (H₂O)
  3. C. Glucose
  4. D. Starch

Correct answer

Water (H₂O)

Explanation

Explanation Glucose is mainly synthesized in plant s through photosynthesis. Carbon dioxide provides the carbon atoms needed for glucose formation. Water (H₂O) provides hydrogen and electrons but does not contribute carbon.

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