CYTOPLASM - (minerals) G. VACUOLES 1. Scattered in...

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CYTOPLASM 1. Properties: a. Viscous fluid b. Consistency of egg whites 2. Function: a. Filling of cell (“cell sap”) b. Suspension medium c. Site of most metabolic processes 3. Composition : a. 80% water b. 20% soluble substances - nutrients, wastes NUCLEOID 1. Properties : a. Long, circular b. Highly folded, suspended in cytoplasm 2. Composition : a. DNA b. Single molecule c. Lacks histones 3. Function : a. Control center of the cell 1). Controls reproduction 2). Controls metabolism b. Contains genetic code (inherited characteristics) E. RIBOSOMES 1. Properties : a. Large, dense granules b. Scattered through out cytoplasm 2. Composition : a. RNA b. Proteins 3. Function : Sites of protein synthesis
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F. INCLUSIONS NUTRIENT (STORAGE) GRANULES 1. Properties : a. Very small, numerous b. Scattered through out cytoplasm 2. Function : Storage of nutrients 3. Composition : Insoluble nutrients : a. glycogen b. phosphate (volutin) c. inorganic ions
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Unformatted text preview: (minerals) G. VACUOLES 1. Scattered in cytoplasm 2. Gases, lipid droplets 8. SPECIAL CELL STRUCTURES A. CAPSULE, SLIME LAYER (GLYCOCALYX) 1. Properties : a. Jelly-like layer secreted by cell b. Adheres to cell wall c. Capsule - thick layer, regular Slime layer - thin layer, loose fitting, irregular 2. Functions : a. Capsule 1). Protects the bacterium from phagocytes 2). Enhances bacteriums ability to produce disease b. Slime layer 1). Protects the cells against drying 2). Allows bacteria to adhere to surfaces in their environment or to each other (colonize) 3. Composition: a. Polypeptides and polysaccharides b. Exact composition varies in each individual species 4. Found only on some cocci, bacilli 5. Will not absorb dyes, need special staining techniques to observe...
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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CYTOPLASM - (minerals) G. VACUOLES 1. Scattered in...

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