Nitrogen Cycle

What is the largest reservoir that contains 78% of N2

• Atmosphere

• Soil

• Plants

Tags

NGSS.MS-LS2-3

Nitrogen gas is colorless, odorless,and ______ causing most organisms to use only compounds made from nitrogen

• Reactive

• Unreactive

Tags

NGSS.MS-LS2-3

The process where N2 molecules in the air break apart and combine with other atoms to form ammonia

• Ammonification

• Nitrogen Fixation

• Assimilation

This type of nitrogen fixation occurs when energy from lighting breaks N2 molecules apart and they combine with oxygen forming N2O

• Atmospheric Fixation

• Industrial Fixation

• Biological Fixation

Industrial Fixation is the process of combing N2 with H2 form

• Nitrates

• Proteins

• Ammonia

Tags

NGSS.MS-PS1-5

Returning nitrogen to the atmosphere by bacteria living deep in swampy sediments is the process

• Ammonification

• Assimilation

• Denitrification

Tags

NGSS.MS-LS2-3

Ammonification is part of the

• Dying

• Decay

• Growth

Tags

NGSS.MS-LS2-3

This form of nitrogen fixation is where most nitrogen "fixing" takes place

• Atmospheric Fixation

• Industrial Fixation

• Biological Fixation

Nitrogen fixing by bacteria living in root nodules of plants is called a /an ______ relationship

• Cyclical

• Fraternal

• Symbiotic

Tags

NGSS.MS-LS2-2

This process in the nitrogen cycle involves bacteria in the ground combing ammonia with oxygen to form nitrates

• Ammonification

• Nitrification

• Assimilation

• Denitrification