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Genome analysis of Desulfotomaculum gibsoniae strain
Genome analysis of Desulfotomaculum gibsoniae strain

... Secondary metabolites biosynthesis, transport and catabolism ...
Analysis of Binary Relations and Hierarchies of Enzymes in the
Analysis of Binary Relations and Hierarchies of Enzymes in the

... actually does not have the enzyme. In the case of the methionine biosynthesis, methionine can be synthesized from homoserine as shown in gure 1 instead of the path containing the missing enzyme EC 4.4.1.1. Thus the lack of this enzyme may not be lethal for the organism. Second, the assignment of th ...
- Philsci-Archive
- Philsci-Archive

... the oxygen-dependent generation of ATP (the “energetic currency” of cells) in mitochondria – oxidative phosphorylation or “OxPhos” for short. His mechanism was remarkable for the fact that it dispensed with the then-usual biochemistry of the homogeneous cytosol and instead gave an integral role to t ...
University of Groningen Fructosyltransferases of Lactobacillus
University of Groningen Fructosyltransferases of Lactobacillus

... Intracellular storage polysaccharides are produced by plants (starch, inulin) and animals (glycogen) and, with fewer examples, by microorganisms (e.g. glycogen). Extracellular polysaccharides (exopolysaccharides; EPS) occur widely among bacteria and microalgae and, less frequently, among yeasts and ...
Origin of Life
Origin of Life

...  No organisms were actually made.  Even if organisms were made in this way, this would not prove it to be how things actually happened, it only shows it to be one possible way.  Accumulation of organic monomers is only the first step in chemical evolution. ©2000 Timothy G. Standish ...
AP Biology Cell Unit Exam - Speedway High School
AP Biology Cell Unit Exam - Speedway High School

... C6H12O6 + 6 O2  6 CO2 + 6 H2O + Energy A) C6H12O6 is oxidized and O2 is reduced. B) C6H12O6 is reduced and CO2 is oxidized. C) O2 is oxidized and H2O is reduced. D) CO2 is reduced and O2 is oxidized. E) O2 is reduced and CO2 is oxidized. 27) What is the primary function of the Calvin cycle? A) use ...
Paper (marking scheme)
Paper (marking scheme)

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Control of Maximum Rates of Glycolysis in Rat Cardiac Muscle

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B324notesTheme 2

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The Puzzle of the Krebs Citric Acid Cycle: Assembling the Pieces of
The Puzzle of the Krebs Citric Acid Cycle: Assembling the Pieces of

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FAS or PKS, lipid biosynthesis and stable carbon isotope
FAS or PKS, lipid biosynthesis and stable carbon isotope

... Fatty acids are found in plants, animals, and microorganisms. Given the ubiquity of these important membrane components in biological systems, it is reasonable to assume that the biosynthetic pathway of fatty acids is relatively ancient [58]. Bacteria are known to synthesize fatty acids via the clas ...
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Sample pages 2 PDF

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CHEM 121 Chp 5 Spaulding

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Monday 10-1 Lecture 1 Q: Thanks for podcasting How can one not

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Fructose 6-Phosphate

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The Citric acid cycle - University of Houston
The Citric acid cycle - University of Houston

... generation of these compounds and others as well. Amphibolic - acts both catabolically and anabolically ...
- Wiley Online Library
- Wiley Online Library

... any NO-producing nitrite reductase. In the course of respiratory nitrite ammoni¢cation, a non-fermentable substrate (predominantly formate or H2 ) is oxidized and electrons are transferred via the quinone pool to NrfA. Alternatively, many bacteria use nitrite as an electron sink, thereby replacing i ...
Mechanistic model of cardiac energy metabolism predicts
Mechanistic model of cardiac energy metabolism predicts

... (52, 68). Various metabolites related to energy transfer (e.g., NADH-NAD⫹ and ADP-ATP) act as modulators of key reactions in the cytosol and mitochondria but have different concentrations in these cellular domains. For example, under aerobic conditions, 5–10% of total ATP (10, 62) and 90% of the NAD ...
Cell Energy (GPC)
Cell Energy (GPC)

Elucidating the Rice Cells Metabolism under Flooding and Drought
Elucidating the Rice Cells Metabolism under Flooding and Drought

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Kuever et al_final.p
Kuever et al_final.p

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Inhibition of anaerobic digestion by organic priority pollutants
Inhibition of anaerobic digestion by organic priority pollutants

... This was produced from a copy of a document sent to us for microfilming. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the material ...
Bean Brew - Science Case Network
Bean Brew - Science Case Network

< 1 ... 34 35 36 37 38 39 40 41 42 ... 389 >

Microbial metabolism



Microbial metabolism is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce. Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic characteristics. The specific metabolic properties of a microbe are the major factors in determining that microbe’s ecological niche, and often allow for that microbe to be useful in industrial processes or responsible for biogeochemical cycles.== Types of microbial metabolism ==All microbial metabolisms can be arranged according to three principles:1. How the organism obtains carbon for synthesising cell mass: autotrophic – carbon is obtained from carbon dioxide (CO2) heterotrophic – carbon is obtained from organic compounds mixotrophic – carbon is obtained from both organic compounds and by fixing carbon dioxide2. How the organism obtains reducing equivalents used either in energy conservation or in biosynthetic reactions: lithotrophic – reducing equivalents are obtained from inorganic compounds organotrophic – reducing equivalents are obtained from organic compounds3. How the organism obtains energy for living and growing: chemotrophic – energy is obtained from external chemical compounds phototrophic – energy is obtained from lightIn practice, these terms are almost freely combined. Typical examples are as follows: chemolithoautotrophs obtain energy from the oxidation of inorganic compounds and carbon from the fixation of carbon dioxide. Examples: Nitrifying bacteria, Sulfur-oxidizing bacteria, Iron-oxidizing bacteria, Knallgas-bacteria photolithoautotrophs obtain energy from light and carbon from the fixation of carbon dioxide, using reducing equivalents from inorganic compounds. Examples: Cyanobacteria (water (H2O) as reducing equivalent donor), Chlorobiaceae, Chromatiaceae (hydrogen sulfide (H2S) as reducing equivalent donor), Chloroflexus (hydrogen (H2) as reducing equivalent donor) chemolithoheterotrophs obtain energy from the oxidation of inorganic compounds, but cannot fix carbon dioxide (CO2). Examples: some Thiobacilus, some Beggiatoa, some Nitrobacter spp., Wolinella (with H2 as reducing equivalent donor), some Knallgas-bacteria, some sulfate-reducing bacteria chemoorganoheterotrophs obtain energy, carbon, and reducing equivalents for biosynthetic reactions from organic compounds. Examples: most bacteria, e. g. Escherichia coli, Bacillus spp., Actinobacteria photoorganoheterotrophs obtain energy from light, carbon and reducing equivalents for biosynthetic reactions from organic compounds. Some species are strictly heterotrophic, many others can also fix carbon dioxide and are mixotrophic. Examples: Rhodobacter, Rhodopseudomonas, Rhodospirillum, Rhodomicrobium, Rhodocyclus, Heliobacterium, Chloroflexus (alternatively to photolithoautotrophy with hydrogen)
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