Question

A student was given a task to observe a bacterial specimen made from dilute yoghurt and sketch the shape of bacteria seen. He drew circular shapes. What kind of bacteria could these be? Cocci Bacilli Spirilla

Answer 1

The answer is cocci.

There are three basic types of the shape of bacteria:
- Cocci - spheres,
- Bacilli - rods,
- Spirilla - spirals.

If a student drew a circular shape, that probably represented sphere. Therefore, the shape of seen bacteria was spherical which suggests that the bacteria must be cocci.