All Flashcards
What are the effects of excess phosphorus in water bodies?
Eutrophication, algal blooms, dead zones.
What causes eutrophication?
Excess phosphorus and nitrogen in water.
What are the consequences of algal blooms?
Oxygen depletion, fish kills, reduced biodiversity.
How do laundry detergents impact the phosphorus cycle?
They contribute to excess phosphorus in wastewater.
How do synthetic fertilizers impact the phosphorus cycle?
Runoff carries excess phosphorus into water bodies.
What is the effect of dead zones on aquatic life?
Harmful to aquatic life and can disrupt entire ecosystems.
What causes phosphorus to be released from rocks?
Weathering due to rain, wind, and natural disasters.
What happens when phosphorus settles at the bottom of water bodies?
It gets stored in rocks and soil, becoming unavailable for immediate use.
What is the effect of deforestation on the phosphorus cycle?
Increased runoff and soil erosion, leading to phosphorus loss from the land.
What is the effect of increased phosphorus levels on drinking water?
Can lead to health issues and requires costly treatment processes.
Why is phosphorus important for living organisms?
Essential for DNA, RNA, and ATP production; a key component of cell membranes and bones.
Why is phosphorus a limiting nutrient in aquatic ecosystems?
It doesn't dissolve easily in water and tends to cling to soil particles, making it less available.
What is the main reservoir of phosphorus?
Rocks and sediments in the Earth's crust.
How does the phosphorus cycle differ from the nitrogen cycle?
Phosphorus cycle has minimal atmospheric component; nitrogen cycle has a significant atmospheric component.
What role does decomposition play in the phosphorus cycle?
Releases phosphorus from dead organisms back into the soil and water, making it available to other organisms.
Explain the role of geologic uplift in the phosphorus cycle.
Brings phosphorus-containing rocks from the ocean floor to land, where weathering releases the phosphorus.
How do humans impact the phosphorus cycle?
Through the use of fertilizers and detergents, leading to excess phosphorus in water bodies.
What is the effect of excess phosphorus in aquatic ecosystems?
Leads to eutrophication, algal blooms, and the creation of dead zones.
Describe the connection between phosphorus and ATP.
Phosphorus is a key component of ATP (adenosine triphosphate), the main energy currency of cells.
What is the significance of phosphorus in DNA and RNA?
Forms the backbone of DNA and RNA molecules, essential for genetic information storage and transfer.
What are the main steps of the phosphorus cycle?
Weathering, transportation, absorption, decomposition, sedimentation, and geologic uplift.
Describe the process of weathering in the phosphorus cycle.
Rocks break down, releasing phosphate into soil and water.
Describe the process of absorption in the phosphorus cycle.
Plants and animals take up phosphate from soil and water.
Describe the process of decomposition in the phosphorus cycle.
Organic matter decomposes, returning phosphate to soil and water.
Describe the process of sedimentation in the phosphorus cycle.
Phosphate settles at the bottom of water bodies, forming sediments.
Describe the process of geologic uplift in the phosphorus cycle.
Sediments containing phosphate are uplifted to form land.
Describe the process of eutrophication.
Excess nutrients lead to algal blooms, decomposition, and oxygen depletion.
Describe the transportation of phosphorus in the cycle.
Phosphorus moves from land to water via runoff and groundwater.
How does phosphorus move from soil to plants?
Plants absorb phosphorus from the soil through their roots.
How is phosphorus returned to the soil from animals?
Through decomposition of animal waste and remains.