M2 PART2 Flashcards
Sum of all chemical reaction that occur within a living cell
METABOLISM
Metabolic activity of bacteria in the presence of what enzymes:
ENDOENZYMES
EXOENZYMES
Energy-producing reactions of bacteria:
OXIDATIVE PROCESS
FERMNETATION PROCESS
bacteria catalyzes within the cell
ENDOENZYME
bacteria catalyzes outside the cell
EXOENZYME
with oxygen
CO2 + H2O
OXIDATIVE PROCESS
acids, alcohols, gases
facultative aerobes
FERMENTATION PROCESS
- The substrate formed from the metabolism of carbohydrate is either glucose or lactose (some people lack enzymes that breaks them down)
- used by almost all bacteria
Glucose —> acid, alcohol, gas, organic molecule
CARBOHYDRATE FERMENTATION
CARBOHYDRATE FERMENTATION
The substrate formed from the metabolism of carbohydrate is either ____ or ____.
GLUCOSE
LACTOSE
CARBOHYDRATE FERMENTATION
source of energy with or without oxygen
ATP
Fermentation in Broth Medium CULTURE MEDIA USED
LACTOSE BROTH
Fermentation in Broth Medium | CHANGE IN COLOR
Inability to utilize carbohydrates
RED TO RED
Fermentation in Broth Medium | CHANGE IN COLOR
Turbidity indicates growth in the medium. Color unchanged indicates other possible sources of energy such as peptone
RED TO RED (TURBID/CLOUDY)
Fermentation in Broth Medium | CHANGE IN COLOR
Ability to use carbohydrates and produce organic acid
RED TO YELLOW
Fermentation in Broth Medium | CHANGE IN COLOR
Ability to use carbohydrate and produce organic acids and gas.
RED TO YELLOW WITH BUBBLE IN DURHAM TUBE
RESULTS
negative fermentation reaction
RED, unchanged
RESULTS
fermentation of the carbohydrate, or acid conditions
RED TO YELLOW
RESULTS
fermentation as well as gas formation, or acid + gas
RED TO YELLOW w bubble in Durham tube
Fermentation in Solid Medium CULTURE MEDIA USED
TRIPLE SUGAR IRON (TSI)
DEEP SLANT
Fermentation in Solid Medium | TSI
inidcates acid production
RED TO YELLOW
Fermentation in Solid Medium | TSI
indicates hydrogen sulfide gas
BLACK COLOR
Fermentation in Solid Medium | TSI
POSITIVE
(glucose fermentation)
YELLOW DEEP
RED SLANT
Fermentation in Solid Medium | TSI
POSITIVE
(indicates glucose, lactose & sucrose fermentation)
YELLOW DEEP & SLANT
Fermentation in Solid Medium | TSI
NEGATIVE
(indicates that no sugar was fermented)
RED
Carbohydrate Fermentation TEST
IMViC Test
* Indole Production Test
* Methyl Red Test
* Voges-Proskauer Test
* Citrate Utilization Test
Methyl Red Test CULTURE MEDIA
Methyl Red-Voges Proskauer Broth (MRVP)
METHYL RED TEST
glucose produces
ACID
METHYL RED TEST
ph indicator
methyl red