Chapter 18, Problem 11STP

Summary Introduction

To determine:

The comparison between different shapes of bacteria.

Introduction:

The bacteria are the microscopic organism. They are prokaryotic and they lack true nucleus. On the basis of morphology, they can be divided into three type: spirochetes, cocci and bacilli.

Explanation of Solution

The bacteria are of three shapes:

Bacilli: These are rod-shaped bacteria; they are elongated in appearance.

Cocci: A round shaped bacteria, they are look like spherical balls under microscopes.

Spirochetes: These are arranged in a helix or a spring like pattern. Their resemblance to the spiral shape is behind the name spirochetes.