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Chapter 8 Worksheet
Chapter 8 Worksheet

... the  diagram  below  without  referring  to  the  text.  Include  electron  transport  and  chemiosmosis,   pyruvate,  mitochondrion,  CO2,  electrons  carried  by  NADH,  citric  acid  cycle,  glycolysis,   cytoplasm,  ATP,  glucose,  and  ele ...
ATP - Coach Blair`s Biology Website
ATP - Coach Blair`s Biology Website

... • Energy is the ability to move or change matter (light, heat, chemical, electrical, etc.) • Energy can be stored or released by chemical reactions. • Energy from the sunlight flows through living systems, from autotrophs to heterotrophs. • Cellular respiration and photosynthesis form a cycle becaus ...
Chapter 21 Biosynthesis of amino acids, nucleotides and related
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8.1 – Cell Respiration

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Classification Lesso..

... Benchmark 1.11 (SOL-BIO1, BIO4, BIO5, BIO7, and BIO8) Students investigate and understand that biological classifications indicate how organisms are related. Organisms are classified into a hierarchy of groups and subgroups based on similarities that reflect their evolutionary relationships. The spe ...
mcb122 tutorial kit - Covenant University
mcb122 tutorial kit - Covenant University

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... glucose to CO2 and gives off energy • Aerobic respiration – glycolysis, the Kreb’s cycle, respiratory chain • Anaerobic respiration – glycolysis, the TCA cycle, respiratory chain; molecular oxygen is not final electron acceptor • Fermentation – glycolysis, organic compounds are the final electron ac ...
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... Relatively few types of organisms can fix nitrogen into forms that can be used for biological processes. Nitrogen fixation: N2+ 3H2  2NH3 – Only symbiotic bacteria fix enough nitrogen to be of major significance in nitrogen production. – ammonification – denitrification ...
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... 28. The term ketogenic amino acids refers to amino acids: (A) that are precursors for glucose synthesis, (B) degraded to yield acetyl CoA or acetoacetate, (C) that can not be converted to fatty acids or ketone bodies, (D) degraded to yield succinyl-CoA, pyruvate, a-ketoglutarate, fumarate and oxaloa ...
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...  Populations – groups of organisms that belong to the same species & live in the same area  Communities – groups of different populations that live in the same area  Ecosystems – groups of communities living together interacting with the physical environment  Biomes – group of ecosystems that ha ...
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Name Date ______ Your
Name Date ______ Your

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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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