What is the nitrogen cycle?
High School Matter Cycling Questions

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Biology
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including nitrogen gas, ammonia, nitrites, and nitrates, which are essential for plant and animal life.
2.
FLASHCARD QUESTION
Front
Why are bacteria important in the nitrogen cycle?
Back
Bacteria play a crucial role in the nitrogen cycle by converting nitrogen gas from the atmosphere into forms that plants can use, such as ammonia, through a process called nitrogen fixation.
3.
FLASHCARD QUESTION
Front
What is photosynthesis?
Back
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.
4.
FLASHCARD QUESTION
Front
What is cellular respiration?
Back
Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water, allowing organisms to use the energy stored in food.
5.
FLASHCARD QUESTION
Front
What is condensation in the water cycle?
Back
Condensation is the process where water vapor cools and changes into liquid water, forming clouds in the atmosphere.
6.
FLASHCARD QUESTION
Front
What is nitrogen fixation?
Back
Nitrogen fixation is the process by which certain bacteria convert nitrogen gas from the atmosphere into ammonia, making it available for plants to use.
7.
FLASHCARD QUESTION
Front
How do plants obtain nitrogen?
Back
Plants obtain nitrogen primarily through their roots by absorbing nitrates and ammonium from the soil.
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