Anoxygenic Photosynthesis:purple bacteriA Flashcards
1
Q
what kind of photosynthesis they do?
A
Cyclic photophosphorylation
2
Q
photophosphorylation means they don’t need
A
electron donor
3
Q
what happens do the electron inside?
A
é cycles through the system
4
Q
what do they produce?
A
pmf for ATP synthase
5
Q
Can they reduce NAD+?
A
yes,but they need an electron source
6
Q
in Purple sulfur ?
A
H2S (photoautotrophs)
7
Q
in purple nonsulfur?
A
succinate(organic compounds,photoheterotrhophs)
8
Q
how can they reduce NAD+?
A
reverse electron flow
9
Q
the energy for the reverse electron flow comes from?
A
pmf
10
Q
how does it influences the need overall yield ATP
A
less ATP
