MICR 221 Lecture Notes - Lecture 5: Photoheterotroph, Psychrophile, Plasmid
12 Jul 2017
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Transformation: process where bacteria incorporate dna from the external environment. Transduction: involves the transfer of genetic material by a virus. Conjugation: involves the transfer of a plasmid. Okay so in terms of transferring transduction = genetic material and conjugation = plasmid. Therefore antibiotics like penicillin have no effect! Heterotrophs: rely on organic nutrients (glucose, for example) -- created. Chemoautotrophs build organic macromolecules from co2 using the energy of chemicals. They obtain energy by oxidizing inorganic molecules like h2s. Chemoheterotrophs require organic molecules such as glucose made by other organisms as their carbon source for energy. Photoautotrophs use only co2 as their carbon source and obtain their energy from the sun. Photoheterotrophs get their energy from the sun -- rely on organic molecules made by other organism for their carbon source. We know that it is photo -- because it uses sunlight. We know that it is hetero-- because it cannot use co2 -- auto uses co2.
