Metabolism Chart

Question 1

Aerobic chemoheterotrophs

Answer 1

E- source: organic
Energy source: organic
Final e- acceptor: O2
C source: organic

Question 2

Fermenters

Answer 2

E- source: organic
Energy source: organic
Final e- acceptor: organic
C source: organic

Question 3

Denitrifier

Answer 3

E- source: organic
Energy source: organic
Final e- acceptor: N compounds
C source: organic

Question 4

Sulphate reducer

Answer 4

E- source: organic, H2
Energy source: organic, H2
Final e- acceptor: SO4(-2)
C source: organic

Question 5

Sulphur reducer

Answer 5

E- source: organic
Energy source: organic
Final e- acceptor: sulphur (S0)
C source: organic

Question 6

Purple sulphur

Answer 6

E- source: H2S
Energy source: light
Final e- acceptor: N/A (cyclic)
C source: CO2

Question 7

Purple non-sulphur

Answer 7

E- source: organic
Energy source: light
Final e- acceptor: N/A (cyclic)
C source: organic

Question 8

Green sulphur

Answer 8

E- source: H2S
Energy source: light
Final e- acceptor: N/A (cyclic)
C source: CO2

Question 9

Cyanobacteria

Answer 9

E- source: H2O, H2S
Energy source: light
Final e- acceptor: N/A (NAD)
C source: CO2

Question 10

Algae

Answer 10

E- source: H2O
Energy source: light
Final e- acceptor: N/A (NAD)
C source: CO2

Question 11

Nitrifier

Answer 11

E- source: 1. NH3 2. NO2
Energy source: 1. NH3 2. NO2
Final e- acceptor: O2
C source: CO2

Question 12

Sulphur bacteria

Answer 12

E- source: H2S, S0, S2O3
Energy source: H2S, S0, S2O3
Final e- acceptor: O2
C source: CO2

Question 13

Methanogens

Answer 13

E- source: H2, acetate
Energy source: H2, acetate
Final e- acceptor: -
C source: CO2, acetate

Question 14

Methanotrophs

Answer 14

E- source: CH4
Energy source: CH4
Final e- acceptor: O2
C source: CH4