Micro 9 (Test 2)

Question 1

Two methods at which bacterial growth can be measured are:

Answer 1

direct count, serial dilutions

Question 2

The _____ of _____ is to prevent the transmission of disease/infection, the decomposition of food, and contamination.

Answer 2

practice… aseptic conditions

Question 3

_____ is any process by which all life forms in a substances are completely destroyed

Answer 3

sterilization

Question 4

_____ indicates the completed absence of all life forms (including spores)

Answer 4

sterile

Question 5

_____/_____ is any agent that kills vegetative forms of bacteria but not including spores (ie. bleach, Lysol)

Answer 5

bacteriocide/germicide

Question 6

A _____ is any agent that kills 99.9% of vegetative microbes with which it comes in contact with (judged by local health authorities)

Answer 6

sanitizer

Question 7

_____is an agent used that at least inhibits the growth of living microorganisms.

Answer 7

anticeptic

Question 8

A _____ is any agent that is used on inanimate items that either kills or inhibit growth of microbes.

Answer 8

disinfectant

Question 9

An _____ is an agent that interferes with microbial growth only (i.e. soap)

Answer 9

microbial

Question 10

Vegetative cells are more or less susceptible to destruction than spores are?

Answer 10

MORE

Question 11

Its more difficult to destroy a bacterial population located in _____ tan if they were in _____

Answer 11

carbohydrates/water

Question 12

Microorganisms grown in organic material weakens the microbe because the _____ is unable to come in contact with the bacteria.

Answer 12

disinfectant

Question 13

_____ material can form a protective coat around the bacteria.

Answer 13

organic

Question 14

Microorganisms growing in _____ are difficult to kill because it shields them from chemical agents and acts as a nutrient source.

Answer 14

carbohydrates