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Option F: Microbes and Biotechnology (HL only) F.5 Metabolism of Microbes.

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Presentation on theme: "Option F: Microbes and Biotechnology (HL only) F.5 Metabolism of Microbes."— Presentation transcript:

1 Option F: Microbes and Biotechnology (HL only) F.5 Metabolism of Microbes

2 F.5.1 Define the terms photoautotroph, photoheterotroph, chemoautotroph, chemohetertroph Photoautrotroph: chlorophyll allows microbes to trap light energy and transfer it to chemical bond energy (i.e. cyanobacteria Anabaena) Photoheterotroph: can convert between anabolic and catabolic reactions (photosynthesis to respiration) (i.e. Rhodobacter sphaeroides) Chemoautotroph: creates own food using the chemical bonds of inorganic molecules (Nitrosomonas  ammonia) Chemoheterotroph: ingest and break down foods containing glucose for energy (i.e. Saccharomyces) Autotrophs Heterotrophs F.5.2 State one example of a photoautotroph, photoheterotroph, chemoautotroph, chemoheterotroph

3 F.5.3 Compare photoautotrophs with photoheterotrophs in terms of energy sources and carbon sources PhotoautotrophsPhotoheterotrophs Energy SourceLightLight and organic compounds Carbon sourcesCarbon dioxideOrganic compounds F.5.4 Compare chemoautotrophs with chemoautotrophs in terms of energy sources and carbon sources ChemoautotrophsChemoheterotrophs Energy SourceInorganic compoundsOrganic compounds Carbon sourcesCarbon dioxideOrganic compounds

4 F.5.5 Draw and label a diagram of a filamentous cyanobacterium Interdependence: Heterocysts: fix dinitrogen to nitrogen compounds (i.e. ammonia) Photosynthetic cells: produce carbohydrates

5 F.5.6 Explain the use of bacteria in the bioremediation of soil and water Bacteria or fungi are used remove contaminants (energy sources) in the environment OR converts them to a harmless form Ex: Pseudonomas used to clean up oil spills


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