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Boards in March - Micobiology > Bacteria > Flashcards

Flashcards in Bacteria Deck (94)
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1

prokaryotic, cell wall, single chromosome, 70S ribsome

bacteria characteristics

2

stain, shape, oxygen requirements, temperature, others

classification of bacteria

3

lag, log, stationary and death

bacterial growth phases

4

number of cells are constant as they prepare for growth; no multiplication

lag growth phase

5

exponential growth

log growth phase

6

new growth matches die off rate as nutrients run out of food

stationary growth phase

7

gram positive (BLUE) or negative (RED)

stain

8

crystal violet, H2O, iodine, H2O, acetone alcohol wash, safranin, H2O

gram stain

9

iodine (mordant or fixer) and safranin (counterstain)

mordant and counterstain

10

coccus (round), bacillus (rod) or vibrio (comma-shaped)

shape

11

aerobic (grows in O2) or anaerobic (can grow without O2)

oxygen requirement

12

prefers to live without O2 but has the facility (ability) to live with oxygen

facultative anaerobic

13

cannot live in the presence of O2

obligate anaerobic

14

cannot live without oxygen-mycobacteria, bacillus, and pseudomonas

obligate aerobic

15

needs a very small amount of O2 - helicobacter pylori, treponema pallidum

microaerophilic

16

thermophile (45-900), mesophile (20-450), or psychrophile (0-200)

temperature preferences

17

urease, nitrite producing, catalase positive, specific sugar fermentation

other ways of grouping bacteria

18

klebsiella, proteus, ureaplasma, nocardia, (cryptococcus), helicobacter

urease (urea splitting)

19

klebsiella, escherichia coli, enterobacter, pseudomonas, proteus, serratia

nitrite-producing

20

pseudomonas, listeria, escherichia coli, and staphylococcus

catalase - positive

21

staphylococcus aureus; all other staphylococci and coagulase negative

coagulase - positive coccus

22

neisseria gonorrhea and neisseria meningitidis

glucose - fermentation coccus

23

escherichia coli and klebsiella pneumoniae

lactose - fermenting bacilli

24

neisseria meningitdis and proteus mirabilis

maltose fermenting bacteria

25

mycoplasma

bacteria without cell walls

26

chlamydia, rickettsiae, ehrlichia, bartonella, and coxiella

obligate intracellular parasite

27

borrelia, leptospira, treponema

flexible bacteria (spirochetes)

28

all bacteria have cell walls except MYCOPLASMA

bacteria rule 1

29

all cocci are gram + except NEISSERIA

bacteria rule 2

30

all bacilli are gram - except the baccilus group

bacteria rule 3