D. Methods Of Physical Control

Question 0

Heat:

TDP

Answer 0

Minimum, lowest degree C that kills in 10min

Question 1

Physical methods:

Heat

Answer 1

Most common

Thermal death measurement

TDP

TDT

Question 2

Heat:

TDT

Answer 2

Minimum time (minutes) that kills at some specific temperature

Question 3

Physical methods:

Heat:

Dry heat (examples)

Answer 3

Dry oven

Incineration

Question 4

Physical methods:

Heat:

Moist heat

Answer 4

Steam under pressure (ex. Autoclave and pressure cooker)

Steam not under pressure (ex. Boiling, pasteurization)

Question 5

Physical method:

Filtration (examples)

Answer 5

HEPA

Question 6

Physical methods:

Refrigeration

Answer 6

Slows down metabolic activities

Question 7

Physical methods:

Dessication

Answer 7

Drying them out

Loss of H2O

Hypertonic

Question 8

Physical methods:

Osmotic pressure

Answer 8

Salt

Sugar

Hypertonic

Question 9

Physical methods:

Radiation

Answer 9

Energy in the form of waves

Nonionizing

Ionizing

Question 10

Physical methods:

Radiation:

Nonionizing

Answer 10

Does not cause ionization of water or other atoms, causes pyrimidine dimers to form

Ex. UV light

Question 11

Physical methods:

Radiation:

Ionizing

Answer 11

Does cause the ionization of water and other atoms

Ex. X-Ray, gamma rays