Nitrogen Cycle

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What is the nitrogen cycle?

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The nitrogen cycle is the process through which nitrogen is converted between its various chemical forms, circulating through the atmosphere, soil, and living organisms.

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What is ammonification?

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Ammonification is the conversion of organic nitrogen from dead organisms and waste into ammonia by decomposers.

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What is nitrification?

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Nitrification is the process by which ammonia is converted into nitrites and then into nitrates by bacteria in the soil.

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What is denitrification?

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Denitrification is the process by which nitrates are converted back into nitrogen gas, returning nitrogen to the atmosphere.

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What role do plants play in the nitrogen cycle?

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Plants absorb nitrates from the soil and use them to synthesize proteins and nucleic acids, which are essential for growth.

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What is nitrogen fixation?

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Nitrogen fixation is the process of converting atmospheric nitrogen gas into ammonia, which can be used by plants, often facilitated by certain bacteria.

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What is an algae bloom?

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An algae bloom is a rapid increase in the population of algae in water bodies, often caused by excess nutrients like nitrogen.

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Why is nitrogen important for living organisms?

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Nitrogen is a key component of amino acids, proteins, and nucleic acids, making it essential for all living organisms.

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What happens when too much nitrogen enters the ocean?

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Excess nitrogen can lead to algae blooms, which deplete oxygen in the water and harm marine life.

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What are decomposers?

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Decomposers are organisms, such as bacteria and fungi, that break down dead organic matter, returning nutrients to the soil.