Bacteria

Question 1

PT has swelling of submandibular, tenderness. Patient is alcoholic. Radiographic-mass radiopaque circumscribed 1x1cm . what’s the reason?

Answer 1

Bacterial infection

Question 2

What’s the action of pilli in organisms pathogenicity?

Answer 2

Attachment & adherence to host cells

Question 3

What’s the difference between staph & strep?

Answer 3

Catalase enzyme

Question 4

Lancefield is determined by?

Answer 4

C-carb composition of cell wall

Question 5

What does streptomycin inhibit?

Answer 5

Protein production (translation)

Question 6

what aspect of Staph s responsible for food poisoning?

Answer 6

Enterotoxin

Question 7

MOA of staph aureus for drug resistance?

Answer 7

Produce enzymes that breaks down penicillin, beta lactamase

Question 8

What bacteria causes endocarditis in IV DRUG users?

Answer 8

Staph Aureus

Question 9

What’s the most common type of endocarditis?

Answer 9

Streptococcus viridian (alpha-hemolytic )

Question 10

Which disease has Janeway Lesions?

Answer 10

Infective endocarditis

Question 11

Which toxin produces scarlet fever?

Answer 11

Erythrotoxin

Question 12

Rash for Scarlett Fever is cause by?

Answer 12

Ertyrhogenic Toxin of Group A beta hemolytic S.Pyogenes

Question 13

Dextrans is produced by?

Answer 13

Dextran: linked in alpha 1,6 linkage

Question 14

What enzyme do oral bacteria use to create dextran & participates in bacterial aggregation on teeth?

What enzyme primarily break down sucrose?

Answer 14

Glucosyltransferase

Question 15

Dextans for polymers of?

Answer 15

Glucose

Question 16

HOw is glucose and fructose associated with caries?

Answer 16

Dextrans & levans

Question 17

Which of the following is not an oral bacterium & not found in dental plaque?

Answer 17

S. pyogenes

Question 18

Which of the following doesn’t cause penumonia?

Answer 18

S. mutans

Question 19

What’s the most common bacteria on the dorsum of the tongue?

Answer 19

S. salivarius

Question 20

N-Muramic acid is part of?

Answer 20

Bacterial cell wall

Question 21

What does glycan binds to in bacterial cell wall?

Answer 21

D-alanine

Question 22

Rickettsia is a ?

Answer 22

Typhus

Question 23

Rickettsia disease are destructive for?

Answer 23

Endothelial cells of capillaries

Question 24

Which one needs arthropods vector?

Answer 24

Rickettsia EXCEPT COX BURN

Question 25

Weil felix test is for?

Answer 25

Ricketssia

Question 26

Which is not from a flea/insect bite?

Answer 26

Q fever

Question 27

The toxin of gas gangrene organisms has what kind of enzymatic activity?

Answer 27

Lipase lecithinase

Question 28

MOA of tetanus toxin?

Answer 28

Inhibition of NT release (prevent release of GABA & glycine)

Question 29

OVer-treating with antibiotics, C. dfifficiles, would show?

Answer 29

Pseudomembranous colitis

Question 30

What is used to treat with Clostridium difficiles's diarrhea & intestinal colitis?

Answer 30

Clindamycin

Question 31

What are 2 pore-forming bacteria?

Answer 31

1. Clostridium | 2. Bacillus

Question 32

What ion is related to spores?

Answer 32

Calcium dipicolinic (heat resistance of the endospores)

Question 33

What organism has mycolic acid that block antibiotics from penetrating?

Answer 33

Mycobacterium tuberculosis

Question 34

What organism is mainly found in AC condition systems?

Answer 34

Legionnaires pneumophila

Question 35

An infection of the epithelial cells of the eye that can sometimes enter back into the nasopharynx?

Answer 35

Trachoma due to chlamydia trachomatis

Question 36

Blindiness results from?

Answer 36

Chlamydia trachomatis | trachoma & adult inclusion conjunctivitis

Question 37

What's the most common cause of non-gonoccoal urethritis?

Answer 37

Chlamydia

Question 38

Which produces these toxins: PA, EF, LF?

Answer 38

Bacillus anthracis

Question 39

What test is used for syphilis's not painful chancre?

Answer 39

Wassermann test | Dark field microscopy

Question 40

What protozoa are spread in cat feces?

Answer 40

Toxoplasma gondii

Question 41

What is a sign of congenital syphilis infection?

Answer 41

Hutchinson's incisors