20. Microbio: Bacterial pathology Flashcards Preview

.DENTAL BOARD EXAM REVIEWER COPY > 20. Microbio: Bacterial pathology > Flashcards

Flashcards in 20. Microbio: Bacterial pathology Deck (251)
Loading flashcards...
1

Bacteria assoc pigment: red metachromic granules or babes ernst granules

Corynebacterium diptheriae

2

Bacteria assoc pigment: red

Serratia marcescens

3

Bacteria assoc pigment: bluish green; associated with NOSOCOMIAL (hospital acquired) infections

Pseudomonas aeruginosa

4

BQ: Bacteria assoc pigment: yellow sulfur granules

Actinomyces israeli

5

Metabolically active (maturing); not yet dividing.
- nagaadapt palang yung microorganism sa environment

Lag phase

6

Cell division is rapid
- Bactericidal antibiotics act in this phase

Log phase/Exponential phase

7

Kill bacteria
- to take effect = cells must be in cell division stage

Bactericidal

8

Inhibition of growth and multiplication

Bacteriostatic

9

Rate of division = death rate

Stationary phase

10

Nutrients are greatly reduced, TOXINS increased
Death > multiplication

Death phase

11

BQ: What do you call the cell division of bacteria?

Binary fission (Asexual reproduction)

12

BQ: What are the small DNA molecules found in the microorganisms that are separated from their chromosomal DNA?

Plasmid

13

This is the process of transferring PLASMIDS from one microbe to another

Horizontal gene transfer or bacterial recombination

14

Direct contact and uses SEX PILI(used for attachment)

Conjugation

15

Type of horizontal gene transfer where DNA is left in envt then engulfed by recipient bacteria

Transformation
(“F” for feces nlilalabas naiiwan sa envt)

16

Uses bacteriophage or a bacterial virus to transfer plasmids

Transduction
(“D” delivery boy: transfer)

17

Bacteriophage = USER
1. Phage genome combines with bacteria (Lysogenic cycle)
2. When bacteria multiplies, viral DNA also multiplies
3. Phage kills bacteria (LYTIC CYCLE)

Temperate phage

18

Bacteriophage = not useful to the bacteria
- phage kills bacteria (lytic cycle)

Virulent phage

19

BQ: What is the basic component of a CELL WALL? (bacterial cell wall)

Glycoproteins

20

Gram positive cell wall is _____ than gram negative

Gram positive thicker cell wall

21

Peptidoglycan of gram positive vs gram negative

Thick peptidoglycan positive
Thin peptidoglycan negative

22

Exotoxin of gram +
(Attached to the peptidoglycan or murein LAYER)

+eichoic acid = EXOtoxin (+)

23

ENDOtoxin of gram -
(Activated immune response)

Lipopolysaccharide (ENDOtoxin -)

24

What gram positive bacteria produces ENDOtoxin and EXOtoxin?

Lis+teria monocytogenes

25

With mycolic acid which is a waxy substance that is resistant to gram staining and decolorization

Acid fast

26

Is a waxy substance that is resistant to gram staining and decolorization

Mycolic acid

27

Gram staining procedure (VIAS)

Crystal violet (primary stain)
Iodine (violet)
Alcohol (decolorization)
Safranin/carbolfuchsin (red; counterstain)

28

Color of gram +

Violet

29

Color of gram -

Red

30

Streptococcus mutans: gram _

S. Mutans gram + violet