Bacterial Morpology

Question 1

What are the two most common bacteria shapes?

Answer 1

1. Coccus (spherical)

2. Bacillus (cylindrical)

Question 2

What are the 7 bacterial shapes?

Answer 2

1. Coccus (spherical)
2. Coccobacillus
3. Bacillus (rod/ cylindrical)
4. Vibrio (curved rod)
5. Spirillum (spiral)
6. Spirochete (Helical)
7. Pleomorphic (shape-changers)

Question 3

Which groupings result from division along a single plane? Name examples.

Answer 3

1. Pairs: diplococci (Meisseria gonorrhea)

2. Chains: streptococci (species of Streptococcus)