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LoE - Nitrogen Cycle

Life on Earth - Topic 2 - Nitrogen Cycle

QuestionAnswer
Why do plants need nitrogen? To make protein
In what form do plant absorb nitrogen? Nitrate
Define decomposition. Organic waste is broken down to produce ammonia
What type of organism can carry out decomposition? Fungi
During nitrification, ammonia turns into what molecule before becoming nitrate? Nitrite
What type of bacteria controls nitrification? Nitrifying bacteria
What process involves nitrates in the soil being released into the atmosphere as nitrogen gas? Denitrification
What type of bacteria turn nitrates into nitrogen gas? Denitrifying bacteria
What process involves nitrogen gas being converted into nitrates? Nitrogen fixation
What type of bacteria can turn nitrogen gas into nitrates? Nitrogen fixing bacteria
Name 2 places that nitrogen fixing bacteria can be found. In the soil or in root nodules of certain plants
What stage of the nitrogen cycle doesn't involve any bacteria? Animals eating the plants in the food chain
Created by: StNiniansHS