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CHEM120-62398 Introduction to Organic and Biological Chemistry Chamberlain University

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Chamberlain University

CHEM120-62398 Introduction to Organic and Biological Chemistry Chamberlain University

BACTERIA SHAPES
Bacteria come in a great many sizes and several shapes. They have a few basic shapes:
• Spherical coccus (plural: cocci, meaning berries).
• Rod-shaped bacillus (plural: bacilli, meaning little staffs).
• Spirilla (twisted) – spiral, spirochetes and vibrios (comma shaped).
COCCUS (PLURAL: COCCI)
Cocci are usually round but can be oval, elongated, or flattened on one side. When cocci divide to
reproduce, the cells can remain attached to one another. Cocci that remain in pairs after dividing are
called diplococci.
Those that divide and remain attached in chain like patterns are called streptococci.
Those that divide and remain in groups of four are known as tetrads.

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CHEM120-62398 Introduction to Organic and Biological Chemistry Chamberlain University

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