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Classify bacteria on the basis of their shape. |
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Answer» Bacteria are classified as given below: (i) Cocci : They are oval or spherical in shape. When they occur singly, they are called Micrococcus; if in pairs Diplococcus; if in a chain, Streptococcus; and if occur in clusters, Staphylococcus. (ii) Bacilli: They are rod-like, with or without flagella. Flagella may be present at one or both the ends or around cells. Bacteria may occur singly, Bacillus; or in pairs, Diplobacillus or may form filaments, Streptobacillus. (iii) Vibrio : They are small and curved like commas. These are mostly motile. (iv) Spirillum : These are twisted like a screw. They have flagella at one end or both the ends. Certain bacteria possess flagella for locomotion. |
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