M1 Revision

Question 1

what re the man div of living orgs

Answer 1

plants
animals
micro orgs

Question 2

what re the man div of micro orgs

Answer 2

algae
fungi
bateria
protozoa

Question 3

what si size related

Answer 3

complexity

how quick grow and evolve

Question 4

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

Answer 4

further think cough

Question 5

what are other process need to be aware of

Answer 5

cell cycle/ prolif
evolution (resistance)
evasion
colonisation

Question 6

what are the basic features of prokaryotic cell

Answer 6

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

Question 7

what are th basic features of a eukaryotic cell

Answer 7

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

Question 8

what is the generalisation of eukaryotic structure

Answer 8

compartmentalised

Question 9

what are some internal features of eukaryote

Answer 9

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

Question 10

what are some external features of eukaryotic cell

Answer 10

cell wall
capsule
cilia
flagella

Question 11

why is prokaryotic cytoplasmic mem more imp

Answer 11

imp barrier of in and out

resp events = Photomotive force

Question 12

what is important about cell wall

Answer 12

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

Question 13

what do cell walls contain

Answer 13

peptidoglycan

Question 14

what s peptidoglycan

Answer 14

sugar lattice

peptide bridges

Question 15

what does ftsI encode

Answer 15

PBP3

penicillin binding protein

Question 16

what is FtsI

Answer 16

transmembrane protein

Question 17

what is transpeptidase

Answer 17

enzyme cross links peptide side chains in transpepetidation

Question 18

what is the target of penicillin

Answer 18

FtsI

Question 19

what is the cell wall like in gran -ve

Answer 19

thin cell wall located between inner and outer mem

Question 20

what is cell wall like in gam +ve

Answer 20

thick multilayer cell wall and cytoplasmic mem

Question 21

what are the cell wall basic features

Answer 21

rigid layer
barrier
rep polysac structure
SECONDARY structure

Question 22

what is a lipopolysaccharide

Answer 22

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

Question 23

what is flagella

Answer 23

protein unit used for motility

Question 24

what is fimbriae

Answer 24

gram -ve
pilin no motor
more for adherence and sex

Question 25

what is the cytoplasm mem

Answer 25

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

Question 26

what is protomotive effect at the cytoplasmic mem

Answer 26

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

Question 27

under anaerobic conns what happens to pyretic acid

Answer 27

conv to lactic acid or ethanol

Question 28

what is an excellent oxygen acceptor

Answer 28

hydrogen = water

Question 29

what is distinct about prokaryotic preteen synthesis

Answer 29

distinct proteins cootransC/transL cytoplasmic mem target for antibiotics

Question 30

what is the nuceloid

Answer 30

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

Question 31

how does food influence prokaryotic growth

Answer 31

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

Question 32

how does temp influence prokaryotic growth

Answer 32

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

Question 33

what is the pH range for human commensals

Answer 33

6.8-7.2

Question 34

what is the osmotic protection fro human commensals

Answer 34

0.85% NaCl

Question 35

what are the types of oxygen for prokaryotic growth

Answer 35

aerobes, microaerophiles, facultative anaerobes, anaerobes

Question 36

what is the phases of bacterial growth curve

Answer 36

lag phase expo phase stationary phase decline phase

Question 37

what is a virus

Answer 37

very small non cellular microbe obligate intracellular parasite

Question 38

what is the virus particle

Answer 38

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

Question 39

what is viral reproduction

Answer 39

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

Question 40

what is the development of oral flora like

Answer 40

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

Question 41

what does whole saliva compose of

Answer 41

``` secretory IgA, IgG proteins enzymes electrolytes polymorphs ```

Question 42

what is standard infection confrtrl

Answer 42

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