2

Question 0

Microorganism which is most likely to grow in canned food

Answer 0

Obligate anaerobe

Question 1

Primary role of Lactobacilli in the adult vagina is to:

Answer 1

Maintain an acidic pH

Question 2

Which is not a heavy metal-containing disinfectant?
Chlorine
Merthiolate
Silver nitrate
Copper sulfate

Answer 2

Chlorine

Question 3

Sweet and salty foods frequently don’t require refrigeration to prevent spoilage because

Answer 3

They have high solute concentration

Question 4

Which one of the following is a limitation of autoclave?
A. It will destroy a heat-labile materials
B. It lacks the ability to inactivate viruses
C. It cannot be used to sterilize glasswares
D. It cannot kill endospores

Answer 4

A

Question 5

Used to prevention infection by killing or inhibiting microbial growth on inanimate objects

Answer 5

Disinfectant

Question 6

Could be sterilized by dry heat sterilization

Rubber gloves
Glass pipettes
IV solutions
Plastic IV bags

Answer 6

Glass pipettes

Question 7

First widely used antiseptic and disinfectant

Answer 7

Phenol

Question 8

Agents act by disrupting microbial cell membranes

Answer 8

Cationic detergents

Question 9

All of the ff are sporicidal except

A. Alcohol
B. Ethylene oxide
C. Formaldehyde
D. Glutaraldehyde

Answer 9

A

Question 10

Bacterial proteins that can destroy other bacteria

Answer 10

Bacteriocins

Question 11

Infection with potential to become active at some time

Answer 11

Latent

Subclinical- no signs and symptoms
Fulminant- rapidly progressive
Pyogenic- pus forming

Question 12

Enzyme that catalyzes the degradation of hydrogen peroxide to water and oxygen

Answer 12

Catalase

Question 13

Enriched medium used to grow fastidious microorganisms

Answer 13

Blood
Yeast extract
Brain infusions

Question 14

Process of disinfecting places and utensils used by the public

Answer 14

Sanitization

Question 15

Chemical alternative to chlorine in disinfection of swimming pools and water containers

Answer 15

Bromine

Question 16

70% alcohol is more effective than pure alcohol as antimicrobial agent because

Answer 16

It containes 30% water

Question 17

True regarding iodophor
A. Slowly releases iodine
B. Long lasting and non-irritating
C. Iodine-containing organic compound

Answer 17

A B C

Question 18

Technique combining freezing and drying commonly used to preserve microbes and other cells

Answer 18

Lyophilization

Question 19

MO that can survive in presence of oxygen

Answer 19

Aerobic microbe

Question 20

Macroscopic cluster of cells appearing on solid medium, each arising from the multiplication of a single cell

Answer 20

Colony

Question 21

Enteric disease is the disease of the

Answer 21

Intestines

Question 22

Hektoen enteric agar is used to culture _______

Answer 22

Shigella and Salmonella

Question 23

“Classic” solid medium used to cultivate Mycobacterium species

Answer 23

Lowenstein Jensen Agar

Question 24

Media most suitable for identifying Neisseria gonorrhae un a cervical swab

Answer 24

Thayer-Martin medium

Question 25

Iron-binding compounds produced by bacteria to sequester iton from their host

Answer 25

Siderophores Transferrin, Lactoferrin- human

Question 26

MOs that are ordinarily non-pathogenic or weakly pathogenic microbes but they cause primarily in an immunologically compromised patient

Answer 26

Opportunistic pathogen

Question 27

Serum enriched gelatin medium used for isolation of Leptospiral species

Answer 27

Fletcher's medium

Question 28

Under ideal conditions, fermentation of one glucose molecule by a bacterium allowa s net gain of how many ATP molecules

Answer 28

2

Question 29

Complete aerobic oxidation of one molecule of glucose by a bacterium allows a net gain of how many ATP molecules

Answer 29

38

Question 30

Organisms preferentially may thrive in cold and icy waters

Answer 30

Psychrophiles

Question 31

True regarding a defined medium A. The exact chemical composition of the medium is known B. Agar is available as source of nutrients for microorganism C. Blood and brain infusions may be added D. Organic chemicals are excluded

Answer 31

A

Question 32

Test used to differentiate E.coli from Enteribacter aerogenes

Answer 32

IMViC test-Indole Methylred Vogues Prokauer Citrate

Question 33

Conditions which may result to an immunocompromised patient Diabetes Cancer Alcoholism

Answer 33

All

Question 34

This stimulate the activity of neutrophils, do not protect the cell that secretes them, cause muscle aches,chills, and fever

Answer 34

Interferons

Question 35

Used to prevent infection by killing or inhibiting pathogen growth on animal tissues

Answer 35

Antiseptic

Question 36

Scientist who developed a procedure to heat wone at temperatues well below boiling to prevent spoilage of the wine

Answer 36

Pasteur

Question 37

Agar is part of the cell wall of which algal division

Answer 37

Rhodophyta- rhodo means rose/red

Question 38

``` Methods of motility used by protozoa except A. Gliding by slime secretion B. Flagella C. Pseudopodia D. Cilia ```

Answer 38

A

Question 39

Phylum of protozoa being studied as biological control agents for certain insects

Answer 39

Microspora

Question 40

Systemic infection caused by MO multiplying in circulating blood

Answer 40

Septicemia

Question 41

Practice of principles or rules for promotion and maintenance of cleanliness and health

Answer 41

Hygiene

Question 42

Short period of time which is characterized by early mild symptoms of the disease like body aches and malaise

Answer 42

Prodromal period-2nd Incubation-arrival of MO,early symptoms Period of illness-3rd; signs and symptoms are particular Preiod of convalescence-recovery

Question 43

Most antibiotics are isolated from

Answer 43

Soil microorganisms

Question 44

Most common method of collection of urine

Answer 44

Clean-catch method

Question 45

``` Which of the following is not an acellular agent? A. Viroid B. Rickettsia C. Virus D. Prion ```

Answer 45

B

Question 46

Bacterium-infecting virus

Answer 46

Phage

Question 47

T/F | Viruses contain both DNA and RNA in specific proportions

Answer 47

F

Question 48

Complete virus

Answer 48

Virion

Question 49

Protein coat of virus

Answer 49

Capsid

Question 50

Dengue Hemorrhagic Fever is caused by

Answer 50

Flavivirus

Question 51

Associated with roseola infantum

Answer 51

Human Herpesvirus 6

Question 52

Most common nosocomial pathogen in pediatric wards

Answer 52

Resporatory Synctial Virus

Question 53

Acute infantile diarrhea is most commonly due to infection with

Answer 53

Rotavirus

Question 54

Nonenveloped virion

Answer 54

Rhinovirus

Question 55

Viral disease that has the shortest incubation period of 2days

Answer 55

Influenza Hepatitis B-longest; 118days

Question 56

Associated with erythema infectiosum-5th disease

Answer 56

Parvovirus B19

Question 57

Viral RNA is replicated in the host cell:

Answer 57

Cytoplasmic matrix

Question 58

Itracellular structures formed during many viral infections which can directly disrupt cell structure

Answer 58

Inclusion bodies

Question 59

Virus which is always detectable after injection

Answer 59

Hepatitis B virus

Question 60

Virus associated with cervical cancer

Answer 60

Human papilloma virus

Question 61

Linked to Kaposi's sarcoma-connective tissues

Answer 61

Herpes simplex virus 8

Question 62

``` Cannot be used to identify a virus A. Radioimmunoassay B. Latex agglutination C. Enzyme immunoassay D. Ziehl-Neelsen stain ```

Answer 62

D