Question

a student was given a task to observe a bacterial specimen made from dilute yogurt and sketch the shape of bacteria seen. he drew circular shapes. what kind of bacteria could these be?

Answer 1

The answer is cocci.

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

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