anaerobe
Quick Summary
An anaerobe is an organism that can live and reproduce in the absence of free oxygen. This is in contrast to aerobes, which require oxygen to survive. Some organisms, known as obligate anaerobes, can only grow without oxygen, while others, called facultative anaerobes, can adapt to grow with or without it. Facultative anaerobes can switch between cellular respiration (in the presence of oxygen) and fermentation (in its absence). Many bacteria, such as Escherichia coli, are facultative anaerobes. Anaerobic activity also refers to exercise where the body incurs an oxygen debt.123
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infectious diseaseBacteria…oxygen and, therefore, are called anaerobes. Most bacteria are surrounded by a capsule that appears to play an important role in their ability to produce disease. Also, a number of bacterial species give off toxins that in turn may damage tissues. Bacteria are generally large enough to be seen under…
Read More…oxygen and, therefore, are called anaerobes. Most bacteria are surrounded by a capsule that appears to play an important role in their ability to produce disease. Also, a number of bacterial species give off toxins that in turn may damage tissues. Bacteria are generally large enough to be seen under…
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bacteriaOxygen…archaea (methanogens), are called obligate anaerobes because their energy-generating metabolic processes are not coupled with the consumption of oxygen. In fact, the presence of oxygen actually poisons some of their key enzymes. Some bacteria (S. pneumoniae) are microaerophilic or aerotolerant anaerobes because they grow better in low concentrations of oxygen.…
Read More…archaea (methanogens), are called obligate anaerobes because their energy-generating metabolic processes are not coupled with the consumption of oxygen. In fact, the presence of oxygen actually poisons some of their key enzymes. Some bacteria (S. pneumoniae) are microaerophilic or aerotolerant anaerobes because they grow better in low concentrations of oxygen.…
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protozoanAnaerobic protozoansObligate anaerobes, in which metabolism must take place in the absence of oxygen, are rarely found among eukaryotic organisms. Those eukaryotes that are anaerobic often are either parasites or obligate symbionts of multicellular organisms that have evolved from aerobic ancestors. Excavata includes several anaerobic groups; many…
Read MoreObligate anaerobes, in which metabolism must take place in the absence of oxygen, are rarely found among eukaryotic organisms. Those eukaryotes that are anaerobic often are either parasites or obligate symbionts of multicellular organisms that have evolved from aerobic ancestors. Excavata includes several anaerobic groups; many…
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