Lecture 30 Flashcards
(6 cards)
1
Q
most identified microbes are…
A
pathogens or fast-growing organisms
2
Q
what are “genetic fingerprints” and how are they used?
A
- used to sequence and identify bacteria
- unique 16S rRNA sequences
3
Q
what are the redox reactions for energy transfer in bacteria?
A
-oxidation H2S -> S
- reduction NADP+ -> NADPH2
- oxidation NADPH2 -> NADP+
- reduction CO2 -> (CH2O)n
4
Q
redox reactions are facilitated by…
A
NADH and NADPH
5
Q
what are the differences between autotrophs and heterotrophs?
A
autotrophs = Primary Producers, Fix CO2, self-sufficient
heterotrophs = Decomposers, Need fixed carbon, cannot use
CO2 directly, dependant on autotrophs
6
Q
how do microbes in a microbial mat avoid competition?
A
- common resource = light
- Avoid competition by tuning their antenna to different
wavelength
