W4 L5 Controlling microbes

Question 1

Define generation time

Answer 1

The time it takes for one cell to divide into two cells

Question 2

What is selective media?

Answer 2

is a media that discourages growth of some organisms while not affecting the growth of others

Question 3

What is differential media?

Answer 3

is a media that allows you to differentiate between types of organisms that are growing on media

Question 4

Describe a chemical method of inhibiting microbe growth

Answer 4

Alcohol wipe, or ethylene oxide

Question 5

Describe a physical method of inhibiting microbe growth

Answer 5

Boiling water, autoclave

Question 6

Compare sterilisation and disinfection

Answer 6

Sterilisation is the destruction of all microbes

Disinfection is the elimination of most pathogens

Question 7

What is an antiseptic?

Answer 7

are chemicals that are used to disinfect skin and other living tissues

Question 8

What is a disinfectant

Answer 8

Are chemicals that are used to kill microbes on inanimate objects

Question 9

Define microbicidal

Answer 9

are chemicals, such as disinfectants and antiseptics, that kill microbes

Question 10

Define microbistatic

Answer 10

are substances that inhibit the growth of microbes but don’t necessarily kill them

Question 11

Define sepsis

Answer 11

presences of pathogens in the blood or tissues

Question 12

Define asepsis

Answer 12

refers to the absence of pathogens

Question 13

Define aseptic technique

Answer 13

a collection of techniques that are used to prevent contamination by eliminating and excluding pathogens

Question 14

Define Sterile Technique

Answer 14

are techniques that are used to eliminate all microbes from a particular area