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Ecosystems — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems1 Mark
MCQ
Phosphorus cycles in the form of $........?$
  • A
    $ \mathrm{HPO}^{3-} $
  • B
    $ \mathrm{P}^2 ($gas$)$
  • ✓
    $ \mathrm{PO}_4^{3-} $
  • D
    $ \mathrm{Al}_2\left(\mathrm{PO}_4\right)_3 $
✓

Answer

Correct option: C.
$ \mathrm{PO}_4^{3-} $
Phosphorus is obtained from soil as orthophosphate $( \mathrm{PO}_4^{3-} ).$ Organic phosphorus circulates in nature from plants to animals. Phosphate is released by decomposers $($Phosphatising bacteria$)$ back to soil.

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