Lecture 2.1 - Cell Structure and Function in Bacteria and...

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Unformatted text preview: Cell Structure and Function in Bacteria and Archaea • Cell shape and size • The cytoplasmic membrane and transport • Cell walls of prokaryotes • Other surface structures and inclusions • Microbial locomotion The Importance of Being Small • Transport rates are a function of the surface area of the cell membrane relative to cell volume. • Rapid nutrient and waste transport into and out of the cell, allowing for faster metabolic rates and growth rates. • Rapid growth rates rapid production of large populations of cells, which rapidly adapt to changing conditions and greatly affect the constitution of an ecosystem Tab. 4-1 Cytoplasmic Membrane Transport Cholesterol, a sterol Constituent of eucaryotic membranes Diploptene, a hopanoid Constituent of membranes of Bacteria (but not Archaea) Unique Features of Membranes from Species of Archae Bacteria Archaea R= fatty acids R= repeating units of isoprene isoprene Transport...
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Lecture 2.1 - Cell Structure and Function in Bacteria and...

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