Question

what are the direct methods of counting microbes in microbiology

Answer 1

Answer:

Explanation:Key Points

Directly counting blood cells or tissue cells by using a hemocytometer can determine the concentration of a known volume.

Counting the number of colonies that arise on a pour plate can calculate the concentration by multiplying the count by the volume spread on the pour plate.

Direct counting methods are easy to perform and do not require highly specialized equipment, but are often slower than other methods.

Key Terms

hemocytometer: A device that counts microscopic particles. The hemocytometer works by creating a volumetric grid divided into differently sized cubes for accurately counting the number of particles in a cube and calculating the concentration of the entire sample.

streak plate: A petri dish with a growth medium.