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?
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What is the primary mechanism of phosphorus transport from land to water?
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What type of organisms are responsible for the decay of organic matter in aquatic ecosystems?
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What is the primary form of phosphorus available to phytoplankton in aquatic ecosystems?
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What is the fate of phosphorus in anoxic environments?
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What is the primary form of phosphorus in inorganic sediments?
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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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Description
This quiz covers the processes involved in the phosphorus cycle, including sources, accumulation, anthropogenic sources, decomposition, and the cycle in pelagic waters.
