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Flashcards in M1 Revision Deck (42):
1

what re the man div of living orgs

plants
animals
micro orgs

2

what re the man div of micro orgs

algae
fungi
bateria
protozoa

3

what si size related

complexity
how quick grow and evolve

4

how far does a spore travel in comparison to the other viruses

further think cough

5

what are other process need to be aware of

cell cycle/ prolif
evolution (resistance)
evasion
colonisation

6

what are the basic features of prokaryotic cell

small and simple
primitive intrcellular strutture
circular chromosome
peptidoglycan cell wall
ribosome (70s)

7

what are th basic features of a eukaryotic cell

large and complex
internal memo and mem bound organs
linear chromo
cell envelope or rigid cell wall
ribo (80s)

8

what is the generalisation of eukaryotic structure

compartmentalised

9

what are some internal features of eukaryote

vacuoles
chloroplast - in plant
mito
ribo
golgi
nucleolus
ER
plasma mem

10

what are some external features of eukaryotic cell

cell wall
capsule
cilia
flagella

11

why is prokaryotic cytoplasmic mem more imp

imp barrier of in and out
resp events = Photomotive force

12

what is important about cell wall

structural barrier
(adhesins, in/out)
chem reactions
(energy, transC, transL)

13

what do cell walls contain

peptidoglycan

14

what s peptidoglycan

sugar lattice
peptide bridges

15

what does ftsI encode

PBP3
penicillin binding protein

16

what is FtsI

transmembrane protein

17

what is transpeptidase

enzyme cross links peptide side chains in transpepetidation

18

what is the target of penicillin

FtsI

19

what is the cell wall like in gran -ve

thin cell wall located between inner and outer mem

20

what is cell wall like in gam +ve

thick multilayer cell wall and cytoplasmic mem

21

what are the cell wall basic features

rigid layer
barrier
rep polysac structure
SECONDARY structure

22

what is a lipopolysaccharide

gram -Ve outer mem
glycolipid estrutural role
antigen and bacterial toxin

23

what is flagella

protein unit used for motility

24

what is fimbriae

gram -ve
pilin no motor
more for adherence and sex

25

what is the cytoplasm mem

lipid bilayer
retains cyto
selective barrier
transport
reaction surface (resp, lipid synthesis)

26

what is protomotive effect at the cytoplasmic mem

electrons released from high energy compounds in cyto
reach mem and pass through electron acceptors
protons passed outside mem

27

under anaerobic conns what happens to pyretic acid

conv to lactic acid or ethanol

28

what is an excellent oxygen acceptor

hydrogen = water

29

what is distinct about prokaryotic preteen synthesis

distinct proteins
cootransC/transL
cytoplasmic mem
target for antibiotics

30

what is the nuceloid

contains DNA
no nuclear mem
chromo single circular mol
primitive DNA segregation machinery

31

how does food influence prokaryotic growth

C source organic (proteins/sugars) inorganic (CO2)
O & H
N source (aa, ammonia)
inorganic salts (P, S, K, Mg)
vitamins

32

how does temp influence prokaryotic growth

psycrophiles (low temp)
thermophiles (high temp)
mesophils (body temp)

33

what is the pH range for human commensals

6.8-7.2

34

what is the osmotic protection fro human commensals

0.85% NaCl

35

what are the types of oxygen for prokaryotic growth

aerobes, microaerophiles, facultative anaerobes, anaerobes

36

what is the phases of bacterial growth curve

lag phase
expo phase
stationary phase
decline phase

37

what is a virus

very small
non cellular microbe
obligate intracellular parasite

38

what is the virus particle

nucleic acid (DNA/RNA)
protein shell (capsid)
lipid layer too (envelope)

39

what is viral reproduction

unique assembly
virus genome syn virus proteins and progeny virus genome using cellular machinery

40

what is the development of oral flora like

pioneer orgs (s,cocci) quickly establish to pioneer microbial comm to climax

41

what does whole saliva compose of

secretory IgA, IgG
proteins
enzymes
electrolytes
polymorphs

42

what is standard infection confrtrl

same cross infection control procedures must be used for all pt's