Phosphorus Cycle Process

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Questions and Answers

What is the source of phosphorus in igneous rocks?

Apatite (Ca5(PO4)3+)

What is the role of phosphorus in biological organisms?

Component of DNA, RNA, ATP, proteins, and enzymes

What is a significant source of phosphorus from human activities?

Human waste and anthropogenic sources

What is the fate of phosphorus in plant and animal corpses?

<p>Decay and mineralization</p> Signup and view all the answers

What is the primary mechanism of phosphorus transport from land to water?

<p>Erosion and windblown deposition</p> Signup and view all the answers

What type of organisms are responsible for the decay of organic matter in aquatic ecosystems?

<p>Bacterioplankton</p> Signup and view all the answers

What is the primary form of phosphorus available to phytoplankton in aquatic ecosystems?

<p>PO4 (BAP)</p> Signup and view all the answers

What is the fate of phosphorus in anoxic environments?

<p>Soluble organic-P</p> Signup and view all the answers

What is the primary form of phosphorus in inorganic sediments?

<p>Ca3(PO4)2, Fe3(PO4)2</p> Signup and view all the answers

Flashcards

Phosphorus source in igneous rocks?

Apatite (Ca5(PO4)3+)

Role of phosphorus in organisms?

Component of DNA, RNA, ATP, proteins, and enzymes

Significant phosphorus source from human activities?

Human waste and anthropogenic sources

Fate of phosphorus in corpses?

Decay and mineralization

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Primary mechanism of phosphorus transport?

Erosion and windblown deposition

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Organisms for decay in aquatic ecosystems?

Bacterioplankton

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Phosphorus available to phytoplankton?

PO4 (BAP)

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Fate of phosphorus in anoxic environments?

Soluble organic-P

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Primary form of phosphorus in sediments?

Ca3(PO4)2, Fe3(PO4)2

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Study Notes

Phosphorus Cycle

  • Phosphorus sources include igneous rocks, apatite (Ca5(PO4)3+) and subsequent weathering.

Phosphorus Accumulation

  • Phosphorus is accumulated in biota as a component of DNA, RNA, ATP, proteins, and enzymes.

Anthropogenic Sources

  • Human waste and anthropogenic sources (human activities) contribute to phosphorus accumulation.

Decomposition

  • Decay and mineralization of plant and animal corpses release phosphorus.

Phosphorus Cycle in Pelagic Waters

  • Phosphorus cycle in pelagic waters involves:
    • Erosion
    • Streams, rivers, windblown, and aerial deposition
    • Sedimentary cycle
    • Particulate-P in organic detritus
    • Bacterioplankton
    • Phytoplankton
    • PO4 (BAP)
    • Zooplankton
    • Anoxia
    • Soluble organic-P
    • Decay
    • Fish

Sedimentary Phosphorus

  • Inorganic sediment forms, such as Ca3(PO4)2, Fe3(PO4)2, and organic sediment.

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