Nitrogen Cycle Flashcard Review

Front

Why must nitrogen fixation take place?

Back

Atmospheric nitrogen is unusable to plants and animals

Front

Decomposers that break down dead plants & animals and release nitrogen back into the atmosphere.

Back

bacteria

Front

When nitrogen gas is turned into a form that plants and animals can use is called...

Back

Nitrogen Fixation

Front

Organisms need nitrogen in order to...

Back

To build proteins & DNA

Front

How do animals get the nitrogen they need?

Back

From the food they eat.

Front

The process by which waste and dead organisms release nitrogen back into the soil to be used again.

Back

Decomposition

Front

Which organisms are essential for the nitrogen cycle?

Back

Bacteria

Front

Where are nitrogen-fixing bacteria found?

Back

root nodules of legumes

Front

What is the only form of nitrogen that non-legume plants can take in and use? Options: Nitrates, Nitrites, Diatomic nitrogen, Ammonium

Back

Nitrates