how bacteria grow both in presence and absence of oxygen ?
152040
Aerobic bacteria uses O2 like all the other cells, in resparation, aka. break down of glucose. Anaerobic bacteria, cannot stand oxygen, because it is like a poison to them, they can get all of their energy from chemicals, such as sulphuric acid, from underwater volcano vents
506214
Ans. C) lead (IV) oxide acts as a catalyst and speeds up the reaction, so that more O2 is evolved per unit time.\n\nAns. D) --by increasing the temperature
290325
http://www.science.siu.edu/microbiology/micr201/chapter8N.html\n\nPotential Energy!  Check it out yourself at the link above.
779752
A living cell (like a cell from the liver, lungs, brain, etc...) will die soon after it was removed from its original "place" (liver, lungs, brain, etc.) as it has no more nutrients-supply (by blood venes, for example!) except it is kept in an artificial environment, a culture medium, which is suited to it's very specific needs.\n\nA living cell that is an organism needs a special suited environment, too (a diatom won't survive in the desert...). But it is not depending on an EXTERNAL supply of nutrients, as it "searches" its nutrients on its own. Bacteria, for example, don't need blood venes to grow in order to make cell division, they just need an environment which supplies all the needed nutrients. That's why bacteria can grow nearly everywhere, while lung cells  would die short after you dispersed them on an old dank sponge.\n\nHope I helped you. Excuse my English, please, it's not my first language. Good luck for tomorrow! ;-)
668397
Depends if you want to grow pure cultures of microbes or not. If you don't have to have pure cultures, just put your leftovers in the fridge and forget'em. ;-)\n\nIf you want to grow pure cultures, you will need to know aseptic technique and what each type of microbe likes to eat. \n\nSome will go on a defined medium. That is one that you know exactly what it in there. Some have to have something complicated that we don't know exactly what all the components are, like yeast extract, beef heart infusion, that sort of thing.\n\nThen you need to know the temperature and humidity requirements of your bug and any special atmosphere conditions it need, like low oxygen or no oxygen.\n\nIt also helps to know how to store samples of your bug for future use. Can you freeze it? or do you have to lypholyse it?\n\nHope this helps.
70348
Bacteria, if thats what you meant, isn't made. It is a life form that grows. Bacteria can be grown on a nutrient agar culture in a petri dish. Or, just leave some bread or an old peice of fruit out and you'll get all sorts of bacteria. By the way, there is bacteria all over your body right now.
94077
Fermentation occurs when there is no oxygen in the surrounding environment.  Fermentation is an anaerobic (without oxygen) process.
152182
None that I know of. Anaerobic bacteria do not need oxygen to survive, and usually die in the presence of oxygen.\n\nTo survive, anaerobic bacteria use two types of repiration to survive: Fermentation and anaerobic repiration, both of which utilize glucose. \n\nThe article does mention that there are times the conversion of pyruvate to acetaldehyde generates CO2 and the conversion of acetaldehyde to ethanol regenerates NAD+. It doesn't mention which bacterium can facilitate said process.
874477
By definition, a chemoautotroph derives its energy from chemical sources and not from light.  Chemoautotrophs generally live in environments that light does not reach (for example, deep sea or underground), so even if they had the necessary machinery (i.e., chloroplasts) to conduct photosynthesis, they wouldn't be able to.
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# Anoxic autotrophs: Obtain hydrogen from chemicals such as sulfur.\n[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[Dead Zones are areas where the bottom water (the water at the sea floor) is anoxic, meaning that it has very low (or completely zero) concentrations of dissolved oxygen.]]]]]]]]]]]]]]]]]]]]]]]]]\nDead Zones are areas where the bottom water (the water at the sea floor) is anoxic, meaning that it has very low (or completely zero) concentrations of dissolved oxygen. These dead zones are occurring in many areas along the coasts of major continents, and they are spreading over larger areas of the sea floor. Because very few organisms can tolerate the lack of oxygen in these areas, they can destroy the habitat in which numerous organisms make their home.\n\nThe cause of anoxic bottom waters is fairly simple: the organic matter produced by phytoplankton at the surface of the ocean (in the euphotic zone) sinks to the bottom (the benthic zone) where it is subject to breakdown by the action of bacteria, a process known as bacterial respiration. The problem is, while phytoplankton use carbon dioxide and produce oxygen during photosynthesis, bacteria use oxygen and give off carbon dioxide during respiration. The oxygen used by bacteria is the oxygen dissolved in the water, and that’s the same oxygen that all of the other oxygen-respiring animals on the bottom (crabs, clams, shrimp, and a host of mud-loving creatures) and swimming in the water (zooplankton, fish) require for life to continue.\n\nThe "creeping dead zones" are areas in the ocean where it appears that phytoplankton productivity has been enhanced, or natural water flow has been restricted, leading to increasing bottom water anoxia. If phytoplankton productivity is enhanced, more organic matter is produced, more organic matter sinks to the bottom and is respired by bacteria, and thus more oxygen is consumed. If water flow is restricted, the natural refreshing flow of "oxic" waters (water with normal dissolved oxygen concentrations) is reduced, so that the remaining oxygen is depleted faster.\n\nMany of the areas where increasing bottom water anoxia has recently been observed are near the mouths of major river systems. While Satellite images can’t see the bottom of the ocean, they can see the surface, where sediments from rivers mix with ocean waters. The images shown here are Satellite images (SeaWiFS) observations of the Mississippi River delta, the Yangtze River mouth in China (The Yangtze River mouth is not currently identified as an area with an associated dead zone, but such conditions could develop there in the future), and the Pearl River mouth in China, near Hong Kong.\n\nSeaWiFS can also observe areas where water flow is restricted, such as the Baltic Sea in Europe. The image on the left features Denmark after strong storms caused flooding and increased sediment suspension in the Baltic. On the right is an overview of the Baltic Sea, including a plankton bloom in the Skagerrak just north of Denmark.\n\nThe apparent cause of the creeping dead zones is agriculture, specifically fertilizer. While fertilizer is necessary to foster bumper agricultural crops, it also runs off the fields into the streams and rivers of a watershed. When the fertilizer reaches the ocean, it just becomes more nutrients for the phytoplankton, so they do what they do best: they grow and multiply. Which leads to more organic matter reaching the bottom, more bacterial respiration, and more anoxic bottom water.\n\nThese effects can be magnified by catastrophe. When the heavy rains of Hurricane Floyd caused extensive flooding in North Carolina in September 1999, the heavy load of nutrients (from dead animals, flooded animal waste ponds, and numerous other sources) reached the sounds that lie between the coast and the Outer Banks, oxygen levels in the water plummeted. The picture at the top of the page shows the heavy load of sediments flowing into Pamlico Sound. SeaWiFS captur
466609
well, there are many factors that led to the growth of bacteria..first, the temperature. Temperature affects the growth of bacteria. Like for instance, there are several bacteria that thrive in room temperature, and there are those that thrive in very cold or very hot temperatures. Second, the pH affects the growth of bacteria also. For example, there are micro organisms that thrive in very acidic env't (ex. Candida albicans which causes Candidiasis), also there are those that thrive in alkaline env't.Third, there are special micro organisms that thrive in extreme environment. For instance, there are those that thrive in very saline env't, called extreme halophiles. There are also that thrive in methane- rich env't.\nThere are other factors that lead to the growth of micro organisms but one thing is for sure...micro organisms are everywhere even in the place where no other living things can thrive...
517391
well you say animals...so I think the first animals would have been similar to that of fish due to the large area occupied by water. And they would have no bone, probably use their skin to breathe.\nIf you're talking about bacteria...then yes, it would have to anaerobe because it is believed that the first form of life was some sort of bacteria and at that time there was no oxygen present.\nAnd I think plants too were first found in water.
41036
Bacteria have very short life cycles so adapt very quickly and many species do live in the artic. Like any process in coll temperatures the activity is decreases due to a decrease in kinetic energy, so activity is low.
194855
water food oxygen environment
511940
Chemosynthetic bacteria, chemosynthetic bacteria can survive without light energy, they can live in dark and inhospitable regions, including the hydrothermal vents of the Pacific Ocean. Around these vents, where temperatures reach up to 350°C/662°F, the chemosynthetic bacteria are the basis of a food web supporting fishes and other marine life including the fairy shrimp
589663
To the best of my knowledge any Bacteria such as mentioned above can not survive in the air. They die very quickly once exposed to the environment.
735053
You can have anaerobic respiration and aerobic respiration. The ultimate result is ATP. Anaerobic is done without oxygen (fermentation) and aerobic is done with oxygen,\n\nit starts with glycolosis which takes place in the cytoplasm. Glucose is turned into two pyruvates through a 10 reaction process meditated my enzymes. you produce one ATP and one NADH\n\nthen the pyruvates go into Krebs Cycle or the TriCarboxylic Acid Cycle and goes into the mitochondria. The pyruvate must be converted to acetyl Coenzyme A. then the acetyl Co A enters Krebs and continuously generates Oxaloacetate among other enery-rich compounds such as ATP, NADH and FADH2 with CO2\n\nthen final process is in the electron transport chain which takes place in the inner membrane if the mitochondria. In this process lots of H+ is pumped out of the membrane, which means that H+ is accumalated outside the inner matrix. then the concentration gradient causes a sudden influx of H+ back into the inner membrane which creates "proton-motive force" which zaps ADP+Pi= ATP. \n\nthe end result is 38 ATP for regular cells or 36 ATP for muscles and brain cells.\n\nOXYGEN IS REQUIRED!!! \n\nhope that helps\n\n*oh and ATP is a form of energy for the cell...