Lecture 12

Question 1

Define a bacteriostatic agent

Answer 1

They inhibit the growth of bacteria

Question 2

Define a fungistatic agent

Answer 2

They inhibit the growth of fungi

Question 3

What is the difference between bacteriostatic and fungistatic agents versus bactericidal and fungicidal agents?

Answer 3

Bactericidal and fungicidal agents killed their respective microbes.

Question 4

True or false. Static agents are reversible.

Answer 4

True

Question 5

True or false. Cidal agents are reversible.

Answer 5

False, they are irreversible.

Question 6

True or false. The concentration of the agent dictates the characteristics of the agents potentials. For example: dilute concentration crystal violet are bacteriostats whereas some dilutions are bactericidal.

Answer 6

True.

Question 7

Define sterilization

Answer 7

The removal or killing of living microbes associated with the material.

Question 8

Define disinfection

Answer 8

The killing or microbes capable of causing disease.

Question 9

Give an example within the food industry if disinfection.

Answer 9

Pasteurization.

Question 10

Define a germicide.

Answer 10

A chemical that kills microorganisms.

Question 11

Define sepsis.

Answer 11

The toxic or diseased state resulting from the activity of pathogenic microorganisms.

Question 12

Define antiseptic.

Answer 12

An agent that opposes sepsis by inhibiting the growth of killing microorganisms.

Question 13

Define sanitization.

Answer 13

This process reduced the size of microbial population in or on materials.