Question

What are the three classifications of bacteria?

Answer 1

Bacteria:

1. The unimolecular organisms that are the component of the prokaryotic group are called bacteria.
2. In the cytoplasm, the bacteria DNA is found.
3. Bacteria actually lack a nucleus and few organelles.

Classification of bacteria:

The bacteria are classified based on their shape, cell wall composition, respiration mode, and nutrition mode.

Based on Shape:

1. Bacillus (Rod-shaped)
2. Spirilla or spirochete (Spiral)
3. Coccus (Sphere)
4. Vibrio (Comma-shaped)

Based on the cell wall:

1. Peptidoglycan cell wall
2. Lipopolysaccharide cell wall

Based on respiration:

1. Anaerobic Bacteria
2. Aerobic Bacteria

Based on nutrition:

1. Autotrophic Bacteria
2. Heterotrophic Bacteria