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Question
Biology
Posted 9 months ago
 Identify and describe the 3 basic shapes of bacteria. Name some common variations of these shapes and some unusual shapes.
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Answer from Sia
Posted 9 months ago
Solution
a
Cocci: These are spherical or oval-shaped bacteria. They can exist as single cells, in pairs (diplococci), in chains (streptococci), or in clusters (staphylococci)
b
Bacilli: These are rod-shaped bacteria. They can be found as single rods, in pairs (diplobacilli), or in chains (streptobacilli)
c
Spirilla: These are spiral or corkscrew-shaped bacteria. They can be rigid (spirilla) or flexible (spirochetes)
Answer
The three basic shapes of bacteria are cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped).
Key Concept
Basic shapes of bacteria
Explanation
Bacteria come in three primary shapes: cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped). These shapes can have variations such as diplococci, streptococci, staphylococci, diplobacilli, streptobacilli, and spirochetes.

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