MIC 230 1st Edition Lecture 8 Outline of Last Lecture I. Motility using flagellaII. Fimbriae III. Cytoplasm Outline of Current Lecture IV. Cytoplasma. Inclusion Bodiesb. Polyphosphatec. Sulfur Granules V. EndosporesCurrent LectureI. Cytoplasma. Small molecules/solutesb. Ribosomes/RNAc. DNAd. Inclusion bodies -Macromolecules large polymers -Granulesi. Storage1. Carbon and energy -Polyhydroxybutyric acid (PHB—most common polyhydroxyalkanoate, Fig. 3.26 in text) -Lipid-like -Biological plastic 2. Glycogen or starchpolymer of glucose ii. Polyphosphate (Fig. 3.27 in text)iii. Sulfur granulesEnergy storageThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-Found in microbes that oxidize sulfur for energyiv. Other types of inclusion bodies1. Magnetosome-Bodies of magnetite-Imparts a magnetic field to cell so it orients/align to Earth’s field 2. Gas vacuolesII. Endospore- in the cytoplasm or free (outside the cell)a. Made primarily by soil organisms-Dormant resting bodyprotects against harsh conditions-Ex: Bacillus, Clostridiumb. Most resistant form known-Resistance to temperature, chemicals, some radiation, desiccation (drying out)c. Can cause problems-Clostridium botulinum botulism toxin flaccid paralysis (cannot contract to breath) -Used to make BOTOX There are other resting bodies: cysts, exospores and others, all less resistant to
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