Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MicrobiologyLab22
Questions about "Hydrogen Sulfide Production"
| Question | Answer |
|---|---|
| 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
Popular Biology sets