L1 /
4
CH3041
MICROBE
CLASSIFICATION
2 Carbon source heterotrophs use {CH2O}
autotrophs make {CH2O} using
CO2
3 Energy
source
chemotrophs use bond
E
from inorganic or organic compounds
from inorganic or organic compounds
phototrophs use photon E
4 Electron
donor
organotrophs use {CH2O}
forming CO2 C(0) ® C(IV) + 4e-
forming CO2 C(0) ® C(IV) + 4e-
lithotrophs use inorganic compounds
eg. H2O O(-II) ® O(0) + 2e
eg. H2O O(-II) ® O(0) + 2e
5 Electron acceptor
• Aerobic
conditions.O2 O(0) ®
O(-II)
•Anaerobic conditions a variety of acceptors
NO3-(V), Mn(IV), Fe(III), S(VI), C(0)
NO3-(V), Mn(IV), Fe(III), S(VI), C(0)
