Nitrogen & Phosphorus Cycles

Front

What is the main storage location of phosphorus in the environment?

Back

Phosphorus is mainly found in rocks, sediments, and soil, not in the atmosphere.

Front

How do animals obtain nitrogen?

Back

Animals get nitrogen from the food they eat.

Front

What is a key characteristic of the phosphorus cycle?

Back

Phosphorus is mined from phosphorus-rich rock and is more localized compared to other biogeochemical cycles.

Front

Do living organisms need phosphorus?

Back

Yes, living organisms need phosphorus for various biological functions.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria fix nitrogen from the atmosphere into a form that plants can use.

Front

How is nitrogen fixed into a usable form for plants?

Back

Nitrogen is fixed through the action of bacteria and lightning.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What is the significance of phosphorus in living organisms?

Back

Phosphorus is essential for DNA, RNA, and ATP, which are crucial for energy transfer and genetic information.

Front

What is the difference between nitrogen fixation and nitrification?

Back

Nitrogen fixation is the conversion of atmospheric nitrogen into ammonia, while nitrification is the conversion of ammonia into nitrates.

Front

What are the main forms of nitrogen available to plants?

Back

The main forms of nitrogen available to plants are ammonium (NH4+) and nitrate (NO3-).