Nitrogen Cycle

Nitrogen fixation is.......

• ammonia to nitrites

• nitrates to nitrogen gas

• nitrogen gas to ammonia

• nitrites to nitrates

Denitrification is.......

• ammonia to nitrites

• nitrates to nitrogen gas

• nitrogen gas to ammonia

• nitrites to nitrates

Nitrification is....... (select more than one)

• ammonia to nitrites

• nitrates to nitrogen gas

• nitrogen gas to ammonia

• nitrites to nitrates

Ammonification is.......

• ammonia to nitrites

• nitrates to nitrogen gas

• organic nitrogen compounds to ammonia

• nitrites to nitrates

Tags

NGSS.MS-LS2-3

Organic nitrogen compounds are:

• DNA, RNA, amino acids, proteins

• nitrites and nitrates

• ammonia and nitrogen gas

• proteins and ammonia

What do nitrifying bacteria do?

• nitrogen gas → ammonia

• ammonia → nitrites → nitrates

• nitrates → nitrites → ammonia

• nitrates → nitrogen gas

These bacteria convert nitrates to nitrogen gas

• nitrifying

• denitrifying

• nitrogen fixing

• sparophytic

These bacteria convert ammonia to nitrites

• Nitrobacter

• Rhizobium

• Azotobacter

• Nitrosomonas

These bacteria have a mutualistic relationship with leguminous plants

• Nitrobacter

• Rhizobium

• Azotobacter

• Nitrosomonas

These bacteria oxidise ammonia to nitrites

• Nitrobacter

• Rhizobium

• Azotobacter

• Nitrosomonas