Biochemical Activities of Bacteria Flashcards
Sum of all chemical reaction that occur within a living cell
Metabolism
Metabolic activity of bacteria in the presence of enzymes
Endoenzymes and exoenzymes
Energy-producing reactions of bacteria
Oxidative process and fermen
Biochemical activities
Carbohydrate fermentation, Organic Nitrogen Metabolism, Electron Transport
The substrate formed from the metabolism of carbohydrate is either glucose or lactose
Carbohydrate Fermentation
Glucose in Carbohydrate Fermentation
acid, alcohol, gas, organic molecule
Culture Media used in Fermentation in Broth Medium
Lactose Broth
(Fermentation in Broth Medium) From RED to RED
inability to utilize carbohydrates (negative result)
(Fermentation in Broth Medium) from RED to RED (cloudy)
Turbidity indicates growth in the medium, color unchanged indicates other possible sources of energy such as peptone (negative result)
(Fermentation in Broth Medium) from RED to YELLOW
Ability to use carbohydrates and produce organic acid (positive result)
(Fermentation in Broth Medium) from RED to YELLOW with bubble in Durham tube
Ability to use carbohydrate and produce organic acids and gas (positive result)
Culture Media used in Fermentation in Solid Medium?
TSI Agar Deep Slant Tube
(Fermentation in Solid Medium) indicated acid production
RED-YELLOW
(Fermentation in Solid Medium) indicates hydrogen sulfide gas
BLACK
(Fermentation in Solid Medium) YELLOW deep and RED slant
POSITIVE (glucose fermentation)
(Fermentation in Solid Medium) YELLOW deep and YELLOW slant
POSITIVE (indicates glucose, lactose, and sucrose fermentation)
(Fermentation in Solid Medium) RED deep and RED slant
NEGATIVE (no sugar was fermented)
Culture Media used with the Methyl Red Test and Voges-Proskauer Test??
Methyl Red-Voges Proskauer Broth (MRVP)
(Methyl Red Test) pH of Glucose acid?
4.4 and below
(Methyl Red Test) pH indicator?
Methyl red
(Methyl Red Test) yellow at what pH?
6.2