Review Questions

Question 1

What cellular structure is involved in protein synthesis?

Answer 1

Ribosome

Question 2

What is the type of microscopic technique used to examine living cells?

Answer 2

Phase-contrast microscopy

Question 3

Identify the type of staining used to determine if an organism is a spore former.

Answer 3

Schaefer-Fulton stain

Question 4

What is the CORRECT morphologic name for bacteria that do appear in irregular clusters?

Answer 4

Staphylococci

Question 5

The type of microbial relationship in which one organism benefits and the other neither benefits or is harmed.

Answer 5

Commensalism

Question 6

Which immunoglobulin is the first to appear in immune response?

Answer 6

IgM

Question 7

An infection in which the causative agent remains inactive for a time, but then becomes active to produce symptoms of the disease?

Answer 7

Latent

Question 8

A chancre is present during which stage of a syphilis infection?

Answer 8

Primary

Question 9

The structure that is responsible for regulating movement of materials into and out of the cell:

Answer 9

Cytoplasmic membrane

Question 10

In prokaryotes, respiration occurs through what cellular structure?

Answer 10

Mitochondria

Question 11

Shingles are caused by this virus:

Answer 11

Varicella-zoster virus

Question 12

The cardinal signs of inflammation include all of the following except one. Which one is the exception?

Answer 12

Pus formation

Question 13

The bacterial species primarily responsible for root caries is:

Answer 13

Actinomyces naeslundii

Question 14

The type of immunity acquired when a mother passes antibodies to her infant is called:

Answer 14

Natural passive

Question 15

Herpes viruses are responsible for formation of

Answer 15

Cold sore

Question 16

Causative agent of syphilis is

Answer 16

Treponema pallidum

Question 17

Primary organism in necrotizing ulcerative gingivitis is

Answer 17

Prevotella intermedia

Question 18

Causative agent of tuberculosis is

Answer 18

Mycobacterium tuberculosis

Question 19

All of the following are gram negative bacteria expect one

Answer 19

Strep Spp

Question 20

Bacterial species commonly responsible for smooth surface caries is

Answer 20

S sobrinus

Question 21

Enamel demineralization typically occurs at this pH

Answer 21

4.5-5.5

Question 22

During first month of infant life all of following bacteria are typical at present except one

Answer 22

F nucleatum

Question 23

Phase of bacterial growth where number of viable cells decrease is called

Answer 23

Phase of decline

Question 24

Presence of bacteria in bloodstream is termed

Answer 24

Bacteremia

Question 25

Each of following oral microorganisms could colonize soft tissues except one

Answer 25

Strep mutans

Question 26

Which bacteria are MOST commonly found in Supra plaque

Answer 26

Gram positive cocci

Question 27

All of the following are prerequisites for caries development expect one

Answer 27

Portal of exit

Question 28

Causative agent of aphthous ulcers is

Answer 28

None of above

Question 29

21 yr old presented with raised white non removable plaque on hard palate. Which fungal infection is likely present

Answer 29

Hyperplastic candidiasis

Question 30

Which type of organism uses light for energy

Answer 30

Phototrophic

Question 31

Microbial relationship that results in interaction in 2 different species live in mutual beneficial coexistence

Answer 31

Symbiosis

Question 32

All are true regarding innate immunity expect

Answer 32

Antigen specific

Question 33

HIV is transmitted by all expect

Answer 33

Saliva

Question 34

Risk factored for acquiring HIV include

Answer 34

All of above Unsafe sex Blood iv drug use

Question 35

Causative agent of chicken Pox

Answer 35

Varicella zoster

Question 36

All transmitted via droplet expect one

Answer 36

Hep A virus

Question 37

Causative agent of syphilis is

Answer 37

Treponema pallidum

Question 38

All are perio pathogens expect one

Answer 38

S mutans

Question 39

Gram negative, facultative anaerobes expect

Answer 39

P gingivalis

Question 40

All found in tooth associated plaque biofilms except one

Answer 40

P gingivalis

Question 41

Bacteria responsive for decay on 3O is

Answer 41

S mutans

Question 42

2mm 3mm grayish white lesion w erythematous halo is likely

Answer 42

Aphtous ulcer

Question 43

Etiology for Greyish white lesion w halo

Answer 43

None of above

Question 44

Predominant fluid found in gingival crevicular fluid

Answer 44

Gram neg, rod

Question 45

History of cold sores most likely

Answer 45

Herpes simplex virus

Question 46

2mm 3mm purplish spots

Answer 46

Karposis sarcoma

Question 47

Bacteria for class V decay

Answer 47

A naeslundii

Question 48

White non removeable plaque on palate

Answer 48

Hyperplasticity candidiasis

Question 49

Perio condition present

Answer 49

NUP

Question 50

Medication indicated for depression

Answer 50

Wellbutrin