Phosphorus Cycle

Front

What is the phosphorus cycle?

Back

The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. It involves processes such as weathering, absorption by plants, and sedimentation.

Front

What is a major sink for phosphorus?

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Sedimentary rock is the major sink for phosphorus, where it accumulates over time.

Front

What is released by the weathering of rocks?

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Phosphate is released by the weathering of rocks, making it available for plants.

Front

How do plants obtain phosphorus?

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Plants absorb phosphate from the soil through their roots.

Front

What role does runoff play in the phosphorus cycle?

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Runoff brings phosphorus into waterways, often from agricultural fields and urban areas.

Front

What is atmospheric phosphate?

Back

Atmospheric phosphate refers to phosphorus that is present in the atmosphere, but it is not a significant part of the phosphorus cycle.

Front

What processes are involved in the phosphorus cycle?

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The phosphorus cycle involves processes such as erosion, weathering, absorption by plants, and sedimentation.

Front

How do bacteria contribute to the phosphorus cycle?

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Bacteria break down organic matter and phosphates, making phosphorus available for plant uptake.

Front

What is the significance of phosphates in living organisms?

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Phosphates are essential for the formation of DNA, RNA, and ATP, which are crucial for energy transfer and genetic information.

Front

What happens to phosphorus in aquatic systems?

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In aquatic systems, phosphorus can lead to algal blooms when present in excess, disrupting ecosystems.