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MicrobiologyLab22

Questions about "Hydrogen Sulfide Production"

QuestionAnswer
When hydrogen sulfide is released by microorganisms, it is in the form of a ________. gas
The production of hydrogen sulfide is an (aerobic/anaerobic) reaction anaerobic
Under natural conditions, where might you expect to find hydrogen sulfide produced by microorganisms? Black mud of swamps and lakes.
________ is the color of a positive test for hydrogen sulfide. Black
In order to produce hydrogen sulfide, microorganisms must possess the enzymes to attack ________-containing compounds sulfer
The formation of the compound ________ ________ provides the basis for the detection of hydrogen sulfide. iron sulfide
List four media used to detect hydrogen sulfide production: peptone iron agar (PIA), triple sugar iron agar (TSI), kligler iron agar (KIA), lead acetate agar
________ ________ is the salt added to the medium to detect hydrogen sulfide production. Ferrous salt
________ ________ is the pH indicator used in KIA medium. Phenol red
The acid colors of carbohydrate fermentation reactions must be read at ________ hours and at _____°C to be valid. 24-48, 37
________ and ________ are considered to be multipurpose types of media. KIA (and) TSI
In the absence of sugars, does protein decomposition result in a shift toward the acid or alkaline side? Protein decomposition results in alkaline pH. Acid production is the result of sugar fermentation.
Created by: NeuroHeart