Chapter 18, Problem 7SAQ

a.

Summary Introduction

To define: The origin of agar.

Introduction: Culture medium or growth medium is a liquid, solid or semisolid designed to support the growth of cells or microorganisms. The agar-agar or agar is widely used as a culture medium of bacteria for growing microorganisms or other cells for laboratory experiments purposes.

b.

Summary Introduction

To describe: The reasons that make agar ideal for the cultivation of microbes.

c.

Summary Introduction

To define: The reasons and the way in which the concentration of the agar in semisolid media differ from conventional solid media.