Chapter 18.1, Problem 6MI

Summary Introduction

To identify:

The given prokaryote shape and write its scientific name

Introduction:

There are six kingdoms of organisms; archaebacteria, eubacteria, protists, fungi, plants and animals. There are two kingdoms of prokaryotes; archaebacteria and eubacteria. Prokaryotes can be identified using molecular techniques. Scientists identified bacteria using criteria such as shape, cell wall and movement.

Answer to Problem 6MI

  

Explanation of Solution

Shape is one way to categorize bacteria. There are three general shapes of prokaryotes. Spherical or round shaped ones are called cocci, rod shaped prokaryotes are called bacilli and spiral shaped ones are called spirilli or spirochetes.

Cocci example is Streptococcus pneumoniae .

Bacilli example is Bacillus anthracis .

Spirilli example is Spirillum volutans .