BIOL241 Study Guide - Midterm Guide: Carbon Fixation, Oxygenase, Cellulose
13 Jun 2018
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Bio 241 Midterm 1 Reactions Summary Chart
Table 1: Carbon Cycle
Reaction
Reactant
Product
An/aerobic
Reduction or
Oxidation
Enzymes
involved
Misc
Oxygenic
Carbon fixation
CO2 + H2O
CH2O + O2
Aerobic
Reduction
X
Done by plants and cyanos
Anoxygenic
Carbon Fixation
CO2 + H2S
CH2O + S2
Aerobic
Reduction
X
Done by purple and green S bacteria
Respiration
CH2O +
electron
acceptor
CO2/CH4 +
H2O
An/aerobic
Oxidation
X
From decomp of organic matter
Methanotrophy
CH4 or other
1 C compound
CO2
Micro-
aerobic
Oxidation
Methane
mono
oxygenase
Done by methanotrophs and
methylotrophs
Primary
Fermentation
Cellulose,
lipids, and
protein
Alcohols,
fatty acids,
CO2, and H2
Anaerobic
Oxidation
X
Works in consortium with hydrolysis
and secondary fermentation for anoxic
decomp
Secondary
Fermentation
Products of
primary
fermentation
Acetate,
methane,
CO2, and H2
Anaeronic
Oxidation
X
Keeps H2 levels in control for H2
transfer
Done by homoacteogens and
methanogens
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