Page 31 - MNUmicrobiology practical 2025

General Microbiology & Immunology (PM 401) second level Semester 4 2024/2025

Learning outcomes

• Describe the shapes and arrangements of some common types of
bacteria.

• Identify different bacterial shapes by adjusting the slides using oil
immersion lenses

• Apply aseptic technique for decontamination of loop, flaming the neck
of bottles and test tubes

•

Bacterial shapes, arrangements, and forms

There are three common shapes of bacteria:

• Coccus (singular) or cocci (plural)

• Bacillus or rod (singular) or bacilli, rods (plural)

• Spiral (example of a spirochete, a type of spiral

General Microbiology & Immunology (PM 401) Practical note Page 20