Carbon/Nitrogen Cycle Review

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What is the main role of bacteria in the nitrogen cycle?

Back

Bacteria are responsible for carrying out various processes in the nitrogen cycle, including nitrogen fixation, nitrification, and ammonification.

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How do animals obtain carbon?

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Animals obtain carbon by ingesting plants and other animals.

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What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

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What is assimilation in the nitrogen cycle?

Back

Assimilation is the phase in the nitrogen cycle where plants take up nitrates from the soil through their roots.

Front

What is ammonification?

Back

Ammonification is the process by which decomposers convert organic waste and dead organisms into ammonium (NH4+).

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What is nitrification?

Back

Nitrification is the process in the nitrogen cycle where ammonium is converted into nitrates (NO3-) by bacteria.

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What is denitrification?

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Denitrification is the process by which nitrates are converted back into nitrogen gas (N2) and released into the atmosphere.

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What is nitrogen fixation?

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Nitrogen fixation is the process of converting atmospheric nitrogen (N2) into a form that plants can use, such as ammonium (NH4+).

Front

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.

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What is the significance of the carbon cycle?

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The carbon cycle is crucial for regulating Earth's climate and supporting life by recycling carbon through various forms.