L1 /
5
CH3041
BACTERIA
2
Most bacteria take in other organic
matter {CH2O}
to use as a carbon
source for building their own cellular matter and so these organisms are termed heterotrophs.
3 The energy that the organism gains from
this redox process DGo -475 kJ/mol is the B.E. in complex organic {CH2O} molecules and so these organisms are chemotrophs.
this redox process DGo -475 kJ/mol is the B.E. in complex organic {CH2O} molecules and so these organisms are chemotrophs.
4 The same
bacteria obtain this energy by
respiration : {CH2O} + O2(g) ® CO2(g) + H2O(l)
respiration : {CH2O} + O2(g) ® CO2(g) + H2O(l)
C is
oxidised C(0)
® C(IV), {CH2O} is the electron
donor & so they are organotrophs.
5 Under
aerobic conditions oxygen is the normal electron
acceptor.
O(0) ® O(-II) so
they are aerobes (generally facultative an.).
they are aerobes (generally facultative an.).
