Search results
Results from the WOW.Com Content Network
An anaerobic organism or anaerobe is any organism that does not require molecular oxygen for growth. It may react negatively or even die if free oxygen is present. It may react negatively or even die if free oxygen is present.
Anaerobic respiration differs from aerobic respiration in that it uses an electron acceptor other than oxygen in the electron transport chain. Examples of alternative electron acceptors include sulfate , nitrate , iron , manganese , mercury , and carbon monoxide .
In both aerobic and anaerobic systems the growing and reproducing microorganisms within them require a source of elemental oxygen to survive. [1] In an anaerobic system there is an absence of gaseous oxygen. In an anaerobic digester, gaseous oxygen is prevented from entering the system through physical containment in sealed tanks.
Frequently referenced, but often misunderstood, the difference between the terms "aerobic" and "anaerobic" seems small but is actually big (and important).
A facultative anaerobic organism is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent. [ 1 ] [ 2 ] Some examples of facultatively anaerobic bacteria are Staphylococcus spp. , [ 3 ] Escherichia coli , Salmonella , Listeria spp., [ 4 ] Shewanella oneidensis and ...
The chemolithotrophs that are best documented are aerobic respirers, meaning that they use oxygen in their metabolic process. The list of these microorganisms that employ anaerobic respiration though is growing. At the heart of this metabolic process is an electron transport system that is similar to that of chemoorganotrophs.
In wastewater treatment, the absence of oxygen alone is indicated anoxic while the term anaerobic is used to indicate the absence of any common electron acceptor such as nitrate, sulfate or oxygen. When oxygen is depleted in a basin, bacteria first turn to the second-best electron acceptor, which in sea water, is nitrate.
The opposite of a rosé Organic winemaking A style of winemaking using organically grown grapes and a minimum amount of chemical additives such as sulfur dioxide. Osmotic pressure The tendency of water of within two solutions separated by a semipermeable membrane to travel from a weaker solution to the more concentrated one to achieve equilibrium.