Nitrogen cycle

Front

Nitrogen Cycle

Back

A process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere.

Front

Why can plants not utilize naturally occurring nitrogen gas?

Back

Plants cannot break the triple bond between the two nitrogen atoms.

Front

What is most directly responsible for nitrogen fixation?

Back

bacteria

Front

Which biological process is not linked to the nitrogen cycle? Options: Condensation, Nitrogen fixation, Ammonification, Denitrification

Back

Condensation

Front

Nitrification is the process of turning_into_

Back

NO2 NO3

Front

How do plants obtain nitrogen?

Back

From the soil using their roots

Front

What is the largest natural reservoir of nitrogen on earth?

Back

The earth’s atmosphere

Front

Which of the following is not a way in which nitrogen is fixed?
- Lightening
- Deposition
- Volatilization
- Nitrogen-fixing bacteria

Back

Volatilization

Front

What is the main way that fixed nitrogen is released back into the atmosphere?

Back

Denitrifying microbes

Front

What is the most common way that nitrogen fixation occurs?

Back

Nitrogen-fixing bacteria