Nitrogen cycle

Nitrogen cycle

Assessment

Flashcard

Biology

9th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms in the environment, including the atmosphere, soil, and living organisms.

2.

FLASHCARD QUESTION

Front

What role do plants play in the nitrogen cycle?

Back

Plants absorb nitrogen from the soil in the form of nitrates and ammonium, which they use to synthesize proteins essential for growth.

3.

FLASHCARD QUESTION

Front

How do animals obtain nitrogen?

Back

Animals obtain nitrogen by consuming plants or other animals that have already incorporated nitrogen into their bodies.

4.

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 or related compounds that plants can use.

5.

FLASHCARD QUESTION

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates back into nitrogen gas, returning it to the atmosphere and completing the nitrogen cycle.

6.

FLASHCARD QUESTION

Front

What is an algae bloom?

Back

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

7.

FLASHCARD QUESTION

Front

What happens to the nitrogen cycle if bacteria are eliminated?

Back

If bacteria are eliminated, the nitrogen cycle would stop because bacteria are essential for processes like nitrogen fixation and denitrification.

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