Chapter 4.13, Problem 1MQ

Summary Introduction

Bacteria are prokaryotic microorganism. They can grow and live in various environments like soil, ocean, inside rocks and animals. Bacterial cells lack membrane-bound organelles in their structure. Some bacteria are involved in symbiotic relationships and others may cause serious health problems to humans and animals. Bacteria are broadly classified into gram positive (contains thick peptidoglycan layer) or gram negative based (thin peptidoglycan layer) on their cell walls.