PROKARYOTIC CELLSSize----most range from 0.2 to 2 μ m in diameter, 2 - 8 μ m in lengthShape----Coccus (sphere), Bacillus (rod), SpiralArrangement:a. Cocci---many will be single, but sometimes when cells divide they may remain attached to form:1) Diplococci (pairs)2) Streptococci (chains)3) Tetrads (groups of 4)4) Sarcinae (groups of 8)5) Staphylococci (grapelike clusters)b. Bacilli----mostly single, but some form: 1) Diplobacilli (pairs)2) Streptobacilli (chains)3) Palisades (rods side by side)Rods may vary in shape-long rods to just slightly oval (coccobacilli). Some are irregularly shaped----club-shaped, for example Some species may exhibit the ability to have different shapes under different conditions. Some
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streptobacilli, c. Spirals, PROKARYOTIC CELLS Sizemost