Microbiology Final Exam

Front 1

What is the sequence of Gram stain?

Back 1

Safranin counterstain
(test 1 material)

Front 2

What color do you see under the microscope of the Gram(-) bacteria after the Gram stain?

Back 2

Pink
(test 1 Material)

Front 3

Influenza is caused by what?

Back 3

Influenza virus
(test 2 material)

Front 4

Yellow fever is what?

Back 4

A viral disease
(test 2 material)

Front 5

What do microbiologists add to liquid media to make it solid?

Back 5

Agar
(test 2 material)

Front 6

What does trace elements refer to?

Back 6

Small amounts of mineral requirements.
(test 2 material)

Front 7

Rickettsiae and Chlamydiae are unusual because...?

Back 7

They must live inside other living cells.
(test 3 material)

Front 8

When the F plasmid is incorporated into the chromosome of F+ bacteria, these cells are called what?

Back 8

High-frequency recombination
(test 3)

Front 9

Bacteriostatic agent

Back 9

An agent that in hibits the growth of bacteria.

Front 10

virxocide

Back 10

an agent that inactivates viruses.

Front 11

Germicide

Back 11

An agent killing microorganism and inhibit growth of other.

Front 12

Plate count method

Back 12

not used to measure antimicrobial agent.

Front 13

Bacterialcidal

Back 13

kill bacteria

Front 14

Halogen's

Back 14

Doesn't effect viruses

Front 15

Alcohols

Back 15

Dissolve lipids and deanature proteins.

Front 16

Methane Oxide
p.351-352

Back 16

This is not an example of alkylating, which disrupts proteins and nucleic acids?

Front 17

Alkylating agents consist of what?

Back 17

Formaldehydes, glutaraldehyde, and Beta-propiolactone used in aqueous solutions (F,M, and B)

Front 18

Fromaldehydes

Back 18

inactivates viruses and toxins without destorying antegeneous properties.

Front 19

The method used to evaluate the effect of chemicals F

Back 19

Filter paper test- a clear area around the disk.

Front 20

Deanaturation of proteins by antimicrobial agents

Back 20

Disrupts hydrogen and desulfide bonds

Front 21

Phenols

Back 21

disrupts cell membranes

Front 22

Dry heat is damaged by

Back 22

Oxidizing Molecules

Front 23

Not used when autoclaving

Back 23

Autoheat endospores such as bacillasstreaother mophilus
(BM)

Front 24

autoclaving is involved in what?

Back 24

sterilization

Front 25

Pasturezation

Back 25

Not used to sterilize

Front 26

Lyophilization

Back 26

freeze drying

Front 27

Microwave radiation

Back 27

Water releases energy as heat

Front 28

ultra violet radiation

Back 28

Kills microorganisms by damaging DNA and proteins

Front 29

Ionizing

Back 29

(dislodging electrons from atoms creating ions)

Front 30

Sonic or ultrasonic
p. 359

Back 30

range that can destroy bacteria if the waves are intense

Front 31

Plasmids

Back 31

sugar or salt high concentration with high osmotic pressure
(cell shrinkage which leads to cell death)

Front 32

Moist heat

Back 32

deanatures proteins

Front 33

Ultrasonic waves

Back 33

it does not properly kill organisms

Front 34

filtering water through paper

Back 34

reduces contamination

Front 35

Good method for sanitizing food

Back 35

drying

Front 36

Method used for sanitizing bandages and glassware

Back 36

autoclaving

Front 37

Cheap and easiest way to prevent spread of disease

Back 37

vigorous hand washing

Front 38

Paul Erhlich

Back 38

Found the cure for syphilis. As well as discovering the drug (Salvarsan) And he coined disc

Front 39

Pencillin

Back 39

Alexander Fleming disovered.
Ernest Chain and Howard Florey isolated the antibiotic

Front 40

Chemical subsance used in medical practice

Back 40

Chemotheraputic agent

Front 41

Special group of chemicals subject to treat disease by micobes

Back 41

antimicrobial agent

Front 42

Selective toxicity

Back 42

harms the microbes without harming the host.

Front 43

Mode of action of an antimicrobial agent refers

Back 43

how it exerts its effect upon microorganisms

Front 44

If it is not an antimicrobial agent then

Back 44

it will not disrupt of select toxicity

Front 45

Disruption of an antimicrobial agent is due to

Back 45

enzyme development

Front 46

microorganisms that use ready made folic acid

Back 46

alter metabolic pathway

Front 47

tetracyclines are effective against a large variety of different organisms is considered

Back 47

broad spectrum drug
(Pencillin)

Front 48

antibiotic containing beta-lacta ring

Back 48

binds to crossline pepticoglycans

Front 49

resistance of microorganisms to antibiotics

Back 49

acquired by generation or non- generation change

Front 50

Devlope in second and third line antimicrobial agents

Back 50

increasing different treatment tests for bacteria

Front 51

Determining microbial sensitvity to an antimicrobial agent used in filter paper

Back 51

disc diffusion method