test 1 review

test 1 review - Population growth ceases growth rate =...

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Click to edit Master subtitle style 9/6/11 1 2 3 4 5 6 7 8 9 10
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9/6/11 Inclusion Bodies Magnetosomes Poly-β-hydroxybutyric acid (PHB) Cyanophycin granules Gas vacuoles
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9/6/11 Gram + Cell Walls What’s wrong here? 1 2 3 4 5 6
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9/6/11 Gram - Cell Walls What’s wrong here? 1 2 3 4 5 6 7 8 9 1 0
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9/6/11 Gram positive Peptidoglycan Tetrapeptide chain Direct Crosslin k 1 2 3 Gram negative 4 5
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9/6/11 Flagella, Fimbriae, Pili 1 2 3
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9/6/11 Facilitated Diffusion
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9/6/11 Active Transport 4 1 2 3
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9/6/11 ABC Transporter Mechanism What’s wrong here? 4 1 2 3
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9/6/11 Antiport Symport 1 1 2 2 3 3 4
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9/6/11 Group Translocation 1 2 3 3 4 4 5
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9/6/11 Batch Culture Growth Curve Metabolically active cells but NO increase in number Adaptation: induce enzymes needed; 1 2 3 4
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9/6/11 Batch Culture Growth Curve Population doubles each generation Growth is asynchronous- not all cells divide at exact same time 2 3 4
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9/6/11 Batch Culture Growth Curve Curve becomes horizontal
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Unformatted text preview: Population growth ceases growth rate = death rate Reasons for 3 4 9/6/11 Batch Culture Growth Curve 4 Number of viable cells decreases exponentially Constant number of cells die per hour Usually a logarithmic, but not always so clear Bacterial cell death is defined by the inability to grow (reproduce) May observe a new lag and log phase subsequent to culture die-off Dying cells relieve the 9/6/11 Osmotic Pressure 1 nonhaloph ile halotolera nt moderate halophile extreme halophile 9/6/11 pH Requirements Type Range Acidophiles pH 1.0 5.5 Neutrophiles (most) pH 5.5 8.0 Alkalophiles pH 8.5 11.5 1 2 3 9/6/11 Temperature Requirements 1 2 3 4 5 9/6/11 Oxygen Use/Tolerance Groups 1 1 2 3 4 5 6 7 8 9 10 1...
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test 1 review - Population growth ceases growth rate =...

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