Lecture 9 - microbiology

Question 1

heterotrphs

Answer 1

cant produce own food
require carhan dourse
most abundant

Question 2

macronutrients

Answer 2

carbon nitrogen ocxyge hydorgen
nucleic acids dulpfur an dphosphorus
enzymaric funciton potassiu clacium and magnesium iron

Question 3

micro

Answer 3

zinc sopper magnesium cobalt

Question 4

gewoth facor

Answer 4

whats needed to grow- purine and pyrimadines amino acids and vitamins

Question 5

intracellular bacter

Answer 5

can tgrow on agar

Question 6

growth bedia

Answer 6

basic = basal yeast

Question 7

agar

Answer 7

semi soloid media fro identifivatipon based on colony puritty

Question 8

enriched media

Answer 8

addition of nutrients forn groeth blod agar or chocolatis= lysise blood
fasidious bacteria specific nutrietns needed

Question 9

haemolysiis

Answer 9

beta beight opaque lyeloow ine

alpha dulledd green ,ines non no growht

Question 10

slecrive indicaotr media

Answer 10

selective restrict geortn of paricular organusms macocnket no bile salts
indicator dferetinal media - differentiated between growth

Question 11

chromogenic media

Answer 11

substrae joined to chromaogen cleavage = pridcution collured quicker identificarion

Question 12

rempaetaure htermophile 55-65`

Answer 12

hyperthoermolied 800 mesophile 20-45

psychophile 15

Question 13

obligate aerobe require

Answer 13

oxygen to grow o2 used as final acceptot in aerobic repiration

Question 14

facultative anareobe

Answer 14

switchs

Question 15

obligate anerbaoe

Answer 15

no oxygen

Question 16

obligate anerbaoe

Answer 16

no oxygen fermentation anaerobic reporation

Question 17

microaerphile

Answer 17

low level oxygen

Question 18

catalase catalyses reaction

Answer 18

hydrogen peroscise into ixidase and water - prevents damage free radicals
used in identifcation

Question 19

oxidase test

Answer 19

presece oc=xidase enzykes - colour changee tetra methyl pnfighnsb - purple

Question 20

ph salt radiatopn

Answer 20

ph adidophile nutrophile alka ohiles

Question 21

radiation deinoeoccus and radio durans

Answer 21

endospres resitane an ddormant cells ad spores resonsice ti encvrio conditions dna packaged within

Question 22

biollfilms

Answer 22

bateria in free suspensions in extracelluar matric movre resistan to physical remobal

Question 23

porin

Answer 23

selective refluc

Question 24

teichoci acid

Answer 24

gram positve

Question 25

periplasma

Answer 25

gel like consistuncy

Question 26

toxins

Answer 26

enodtoxins found in vbacteria w/ lipd

exoticubd secreted - most have enzymatic domain and not acitve until bin=binding domain

Question 27

toxoids loss of toxogenic but retenanitgenic

Answer 27

lysins for pores with doff type cells

Question 28

superanitgend

Answer 28

diportional immune repsonse

Question 29

tocixc shock syndormrw- makes cells overeat

Answer 29

endotoxin