microbial metabolic diversity

what are the 2 ways that organisms can get carbon

fixation or eating something with carbon in

define autotrophs

they use co2 as their carbon source, primary producers

define heterotroph

eat carbon from other organisms like animal produce

what 3 groups can heterotrophes be split into

stmbyotic mutualistic, parasitic and saprotroph

what are symbyotic mutualistic relationships

cooprative relationship with the hoast

define parasitic relationship

feed on the hoast

define saphrotroph relationship

the hoast is dead

what energy sources can be used for metabolism

chemical energy and light energy

what 2 types of chemical energy is ther

organic chemical energy and inorganic chemical energy

describe chemoorganotrophs

they use organic chemicals and oxidise thw to release energy stored as atp

describe chemoithotrophs

oxidise inorganic chemical, only done by prokaryotes, can be grouped dependant on type of inorganic molecule

how is light used as an energy source

atp syored in light is released when broken, photosynthesis

what is oxeygenic photosynthesis

they take c02 and fix it into organic compound using the energy from atp and electrons

what is anogenic photosynthesis

the electrons come from sulfur containing compounds not splitting water

whats the prosseses involved in thenitrogen cycle

takes atmospheric nitrogen and fixing it then nitroficatin and finaly dentrifying it

whats nitrogen fixation

turning atmospheric nitrogen into ammonia

what is nitrification

taking amonia and turning it into nitrites - NO2 and nitrates - NO3

what are the 2 types of nitrogen fixing bacteria

free living and symbyotic

describe free living bacteria

live in the soil and fix nitrogen

describe symbyotic bacteria

only exist in assosiation with other plants, in root nodules

whats nitrogenased

enxyme that catalises the reaction, protein with 2 rejions - denitrogonase reductase and denitrogonase

what are the 2 groups of nitrofying bacteria

nitrosonomes and nitrobacteria