Term
|
Definition
Aerobic, gram-,Present in soil, water, plant,Pigments fluoresce
surfaces |
|
|
Term
|
Definition
| Strict Anaerobe, gram-, dominant microbe in human feces |
|
|
Term
|
Definition
| gram-, most prevalent food borne illness |
|
|
Term
|
Definition
Gram -, non-fermentative, can generate electricity by
respiring on electrode
surfaces. |
|
|
Term
|
Definition
Uses inorganic and organic molecules other than
oxygen as terminal electron acceptors; this produces
additional ATP for the cell, but not as much as is in
aerobic respiration (due to diff in potential) |
|
|
Term
Why is there so much
diversity in electron acceptors?
How can prokaryotes
accomplish this? |
|
Definition
Through branched electron transport
chains and modules of oxido-reductases |
|
|
Term
| Nitrate reducing bacteria |
|
Definition
Beneficial process for sewage treatment plants,Dissimilatory nitrate reduction widespread in microbes
– Used for making energy via oxidative phosphorylation |
|
|
Term
Dissimulative NO3
- reduction |
|
Definition
| NO3-->NO2-->NO-->N20-->N2 |
|
|
Term
|
Definition
|
|
Term
| What nitrogen compounds can be reduced by a nir mutant? |
|
Definition
|
|
Term
| Periplasmic nitrate reductases (NapA) |
|
Definition
contains
a molybdenum cofactor |
|
|
Term
| ATP synthesis and Dissimilatory nitrate reduction |
|
Definition
| ATP synthesized by oxidative phosphorylation |
|
|
Term
| Where are enzymes located in dissimilatory nitrate reduction? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Microbes respire arsenate, made arsenite. Causes DNA damage, affects ATP synthesis |
|
|
Term
| Where does the remaining energy from making ATP go? |
|
Definition
|
|
Term
| Sulfate reducing bacteria |
|
Definition
| Deltaproteobacteria, anaerobes, use H2, lactate/acetate/ethanol for carbon/energy source. Common in sulfur rich environments (seawater)or places w/ decomposing matter. |
|
|
Term
| Chemolithotrophy/Oxidation of inorg molecules |
|
Definition
A. A pathway used by a small number of microorganisms
called chemolithotrophs
B. Produces a significant but low yield of ATP
C. The electron acceptor is commonly O2, some others
include sulfate and nitrate
D. The most common electron donors are hydrogen,
reduced nitrogen compounds, reduced sulfur
compounds, and ferrous iron (Fe2+) |
|
|
Term
Typical habitats
of chemolithotrophs: |
|
Definition
Near the interface of
oxic/anoxic conditions |
|
|
Term
| Oxidation of sulfur-compounds |
|
Definition
Produces sulfuric acid (H2SO4)
– Acidification of soil
– Dissolution of minerals, e.g. CaCO3 |
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|
