BIOGEOCHEMICAL CYCLES/ mostly NITROGEN

Nitrogen fixing bacterium

Bacteria in Root nodules

Nitrifying

Bacteria that produce nitrates from ammonia in the soil

Dentrification

Process that converts nitrates into nitrogen gas/n2

Nitrogen fixation

process uses bacteria in soil to fix n2 into amonnia(NH3) for plants:n2 combine w/ hydrogrn to make ammonia, N2 into froms producer can use, take place with N fixing bactefa

Nitrification

Process ammonia (NH3) convett to nitrate ions (NO3-), ammonia to nitrate and nitrate

Ammonification

N2 to ammonia, bacteria and fungi breakdown N from dead bodies and waste and convert into ammonium

Assimilation

Inorganic nitrogrn taken up by roots and become part of food chain NO3→ organic nitrogen(proteins and nucliec acids), producers incoporste into tissues for protein creation

How to phospates mainly enter soil?

Weathering and erosion

Fossil fuels and limstone

Two carbon sinks that hold carbon for the longeet

Importance of nitrogrn

Builds proteins and dna, essential for plant life, limiting factor

Phosporus importance to life

Part of DNA, ATP, RNA, ess. Nut. For plant and ani