Chapter 4.3, Problem 6LO

Summary Introduction

To describe: The three functions of cell membranes.

Concept introduction: Cell is the fundamental unit of life. All living organisms are made up of one or many cells. The organisms are classified as prokaryotes and eukaryotes. Prokaryotes are usually unicellular including the bacteria and archaea, while eukaryotes are usually multicellular including the plants and animals. Prokaryotic cells are simpler and smaller than the eukaryotic cells.