Organism that thrives in an oxygenated environment
Aerobic and anaerobic bacteria can be identified by growing them in test tubes of thioglycollate broth: 1: Obligate aerobes need oxygen because they cannot ferment or respire anaerobically. They gather at the top of the tube where the oxygen concentration is highest. 2: Obligate anaerobes are poisoned by oxygen, so they gather at the bottom of the tube where the oxygen concentration is lowest. 3: Facultative anaerobes can grow with or without oxygen because they can metabolise energy aerobically or anaerobically. They gather mostly at the top because aerobic respiration generates more ATP than either fermentation or anaerobic respiration. 4: Microaerophiles need oxygen because they cannot ferment or respire anaerobically. However, they are poisoned by high concentrations of oxygen. They gather in the upper part of the test tube but not the very top. 5: Aerotolerant organisms do not require oxygen as they metabolise energy anaerobically. Unlike obligate anaerobes however, they are not poisoned by oxygen. They can be found evenly spread throughout the test tube.
An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment.[1] The ability to exhibit aerobic respiration may yield benefits to the aerobic organism, as aerobic respiration yields more energy than anaerobic respiration.[2] Energy production of the cell involves the synthesis of ATP by an enzyme called ATP synthase. In aerobic respiration, ATP synthase is coupled with an electron transport chain in which oxygen acts as a terminal electron acceptor.[3] In July 2020, marine biologists reported that aerobic microorganisms (mainly), in "quasi-suspended animation", were found in organically poor sediments, up to 101.5 million years old, 250 feet below the seafloor in the South Pacific Gyre (SPG) ("the deadest spot in the ocean"), and could be the longest-living life forms ever found.[4][5]
^"aerobe" at Dorland's Medical Dictionary
^Kroneck PM, Sosa Torres ME, eds. (2021). Metals, Microbes, and Minerals - The Biogeochemical Side of Life (1st ed.). Berlin: de Gruyter GmbH & Co. KG. ISBN 978-3-11-058890-3. OCLC 1201187551.
^Morelli AM, Ravera S, Panfoli I (October 2020). "The aerobic mitochondrial ATP synthesis from a comprehensive point of view". Open Biology. 10 (10): 200224. doi:10.1098/rsob.200224. PMC 7653358. PMID 33081639.
^Wu KJ (28 July 2020). "These Microbes May Have Survived 100 Million Years Beneath the Seafloor - Rescued from their cold, cramped and nutrient-poor homes, the bacteria awoke in the lab and grew". The New York Times. Retrieved 31 July 2020.
^Morono Y, Ito M, Hoshino T, Terada T, Hori T, Ikehara M, et al. (July 2020). "Aerobic microbial life persists in oxic marine sediment as old as 101.5 million years". Nature Communications. 11 (1): 3626. Bibcode:2020NatCo..11.3626M. doi:10.1038/s41467-020-17330-1. PMC 7387439. PMID 32724059.
An aerobicorganism or aerobe is an organism that can survive and grow in an oxygenated environment. The ability to exhibit aerobic respiration may yield...
or even die if free oxygen is present. In contrast, an aerobicorganism (aerobe) is an organism that requires an oxygenated environment. Anaerobes may...
A facultative anaerobic organism is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation...
moderate intensity Aerobics, a form of aerobic exercise Aerobic respiration, the aerobic process of cellular respiration Aerobicorganism, a living thing...
living organisms.[better source needed] Respiration can be either aerobic, requiring oxygen, or anaerobic; some organisms can switch between aerobic and...
products that are damaging to microbes, including obligate anaerobes. Aerobicorganisms produce superoxide dismutase and catalase to detoxify these products...
the process still uses a respiratory electron transport chain. In aerobicorganisms undergoing respiration, electrons are shuttled to an electron transport...
frequently in bone marrow transplant patients. C. jeikeium is a strictly aerobicorganism and forms tiny grayish white colonies when grown on blood agar. C....
A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence...
oxidative stress. Among organisms, almost all animals, most fungi, and several bacteria are obligate aerobes. Examples of obligately aerobic bacteria include...
unicellular organism's cytoplasm has distinct separations of an ectoplasm (outer) and endoplasm (inner). As a mitochondriate, aerobicorganism it has many...
intermediate in the citric acid cycle, which occurs in the metabolism of all aerobicorganisms. More than two million tons of citric acid are manufactured every...
draw, one of which is designed for aerobicorganisms that require oxygen, and one of which is for anaerobic organisms, that do not. These two containers...
A multicellular organism is an organism that consists of more than one cell, in contrast to unicellular organism. All species of animals, land plants and...
Anaerobic respiration is done by aerobicorganisms when there is not sufficient oxygen in a cell to undergo aerobic respiration as well as by cells called...
In turn, oxygen is consumed and CO2 is released as waste by all aerobicorganisms when they metabolize organic compounds to produce energy by respiration...
indophenol blue. The cytochrome system is usually only present in aerobicorganisms that are capable of using oxygen as the terminal electron acceptor...
tricarboxylic acid (TCA) cycle or Krebs cycle – which is fundamental to all aerobicorganisms. Citric acid cycle (tricarboxylic acid cycle) Dicarboxylic acid Mellitic...
not required, fermentative organisms are anaerobic. Many organisms can use fermentation under anaerobic conditions and aerobic respiration when oxygen is...
molluscs that have them, which are found in the mantle cavity. In aerobicorganisms, gas exchange is particularly important for respiration, which involves...
suppress the presence of aerobicorganisms such as fish. Deoxygenation increases the relative population of anaerobic organisms such as plants and some...
multicellular organisms, and can degrade even persistent organic pollutants such as organochloride compounds. A related problem for aerobicorganisms is oxidative...
Eukarya or Eukaryota, organisms whose cells have a membrane-bound nucleus. All animals, plants, fungi, and many unicellular organisms are eukaryotes. They...
the antioxidant defenses of most aerobicorganisms. Other nonribosomal peptides are most common in unicellular organisms, plants, and fungi and are synthesized...
Molecular oxygen, O2, is essential for cellular respiration in all aerobicorganisms. Oxygen is used as an electron acceptor in mitochondria to generate...
genes have no known function. The strain HB8 is also an aerobicorganism and is a model organism for systems biology. It has a genome consisting of a plasmid...
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