Micro Final Review

Front 1

psychophilies

Back 1

0-20

Front 2

mesophilies

Back 2

25-40 (disease causing food spoilage microbes)

Front 3

thermophilies

Back 3

50-60 heat lovers

Front 4

hyperthermophilies

Back 4

>90

Front 5

psychrotrophs

Back 5

20-30 food spoilage microbes can grow at 0

Front 6

buffers added to culture media:

Back 6

neutralize acids and bases and ex: aa, phos salt and peptones

Front 7

fac halophilies

Back 7

grow in mod high and low salt concs

Front 8

obligate halophilies

Back 8

require up to 30% salt conc

Front 9

makes proteins (dna, rna)

Back 9

nitrogen

Front 10

needed to amino acid syn

Back 10

sulfur

Front 11

for atp, phospholipids, dna, rna

Back 11

phosphorus

Front 12

needed but cant be syn by microbe (purines and vitamins

Back 12

organic growth factors

Front 13

required for cell respiration

Back 13

oxygen

Front 14

-->02 to h202 and oxygen

Back 14

SOD

Front 15

h202 to water and oxygen

Back 15

catalase

Front 16

needs o2 for growth and has SOD & CATALASE

Back 16

OB. AEROBE

Front 17

REQUIRES LOW CONC (depends on host enzymes)

Back 17

microphilies

Front 18

grows with or without oxygen and has SOD and CATALASE

Back 18

FAC ANAEROBE

Front 19

grows w o2 and is killed by o2 (lacks both)

Back 19

obligate anaerobe

Front 20

grows in presence of o2 but doesnt use it (sod)

Back 20

aerotolerant anaerobe

Front 21

nutrient for growing microbes

Back 21

culture media

Front 22

exact comp known

Back 22

chemically defined

Front 23

exact comp unknown

Back 23

complex medium

Front 24

supressed growth of UNWANTED microbes encourages growth of desired microbes

Back 24

selective medium

Front 25

distinguiches colonies of desired microbes

Back 25

differential medium

Front 26

for preliminary isolation--favors growth of particular microbe

Back 26

enrichment culture

Front 27

thioglycolate for oxygen removel

Back 27

reducing medium

Front 28

c02 rich environments for capnophilies

Back 28

anaerobic jar and chamber

Front 29

long ter ways of preserving

Back 29

deep freexing (-50 to -95) and lyophilization(freeze drying)

Front 30

time for cell to divide and pop double

Back 30

gen time

Front 31

no growth and enzyme DNA and syn occur

Back 31

lag

Front 32

sensitive to pennicillin and radiation

Back 32

log

Front 33

counts colonies on agar after capturing bacteria on filter

Back 33

filtration

Front 34

determines number of coliforms in 100 ml of water or 100g of food

Back 34

MPN

Front 35

killing of all forms of life

Back 35

sterilization

Front 36

destruction of veg forms/pathogens

Back 36

disinfection

Front 37

antiseptic

Back 37

living tissue

Front 38

disinfectant

Back 38

inert surfaces

Front 39

reduce number of microbes to acceptable health levels

Back 39

sanitizatioin

Front 40

mechanical removal of microbes

Back 40

degerming

Front 41

moist heat

Back 41

denatures protein

Front 42

applies mild heat to destroy disease causing and food spoilage microbes

Back 42

pasteur.

Front 43

salts and sugars force water out of microbes

Back 43

osmotic pressure

Front 44

changes molecular pressure of carbs and proteins

Back 44

high pressure

Front 45

drying and disrupts metabl/food preservation

Back 45

desiccation

Front 46

forms thymine dimmers and damages DNA (UV radiation

Back 46

non ionizing radiation

Front 47

damages DNA by ionizing and sterilizes

Back 47

ionizing radiation

Front 48

lysol

Back 48

phenols

Front 49

chlorhexidine (good antiseptic for skin for surgery)

Back 49

biguanides

Front 50

microbial growth + =

Back 50

not effective

Front 51

used for degermind and sanitizing and for dairy

Back 51

anionic detergents

Front 52

have NH4 -- good for mouth wash

-zephiran
-bac against gram +

Back 52

cationic dtergents

Front 53

used for mechanical removal of microbes

Back 53

soap

Front 54

___ alc wil dehydrate and preserve microbes (Bad)

Back 54

100

Front 55

___AGNO3 in newborns eye protects against gonorrheal infection

Back 55

1

Front 56

CUSO4 copper sulfate

Back 56

algicide in fish tanks

Front 57

ZNCL2 zing chloride

Back 57

in toothpaste

Front 58

zinc oxide

Back 58

paint and antifungal

Front 59

inhibit microbial metabolism

Back 59

food preservatives

Front 60

nisin and natamycin for

Back 60

cheese

Front 61

denatures protein by bonding with SH, NH2, COOH AND H2 ex formalin and glutaraldehyde

Back 61

aldehyde

Front 62

for chloride and iodine

Back 62

halogens

Front 63

ozone, h202, peracetic acid

Back 63

peroxygens

Front 64

NA0CL

Back 64

active ingredient in chlorox

Front 65

denatures protein by bonding with SH, NH2, COOH AND H2 ex formalin and glutaraldehyde

Back 65

aldehyde

Front 66

HOCL + HCL most effective....

Back 66

used in pools

Front 67

for chloride and iodine

Back 67

halogens

Front 68

ozone, h202, peracetic acid

Back 68

peroxygens

Front 69

NA0CL

Back 69

active ingredient in chlorox

Front 70

HOCL + HCL most effective....

Back 70

used in pools

Front 71

tincture of iodine=

Back 71

irritates skin

Front 72

iodophor

Back 72

less irritationg

Front 73

many ribosomes translating same code

Back 73

polysome or polyribosome

Front 74

has initiation enongation and termination

Back 74

translation