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A Catalase Test Was Done On An Unknown Specimen. Observe The Pictured Result And Answer The Following Question.
- the organism does not produce catalase.
http://media.pearsoncmg.com/bc/bc_0mastering/microbiology/coaching_activities/tsi_07.jpg
The bacterium is unable to ferment lactose and/or sucrose.
The bacterium is able to ferment glucose.
The bacteria is Gram-positive.
The pH of the agar decreased following incubation.
Hydrogen sulfide (H2S) was produced.
2. The pH of the agar decreased following incubation.
3. Hydrogen sulfide (H2S) was produced
http://media.pearsoncmg.com/bc/bc_0mastering/microbiology/coaching_activities/tsi_05.jpg
The bacterium is able to ferment glucose.
The bacterium is able to ferment lactose and/or sucrose.
The bacteria is Gram-positive.
The pH of the agar increased following incubation.
Hydrogen sulfide (H2S) was produced.
To conduct this test the slant must be streaked.
To conduct this test the butt of the tube should be stabbed.
2. The bacterium is able to ferment lactose and/or sucrose
3. To conduct this test the slant must be streaked
4. To conduct this test the buttt of the tube should be stabbed.
A Catalase test was done on an unknown specimen. Observe the pictured result and answer the following question.
http://session.masteringmicrobiology.com/problemAsset/1556556/1/catalase_test_03.jpg
Select ALL appropriate statements regarding the pictured Catalase test result.
The organism can convert hydrogen peroxide to water and oxygen.
The organism does not produce catalase.
The organism produces catalase.
The organism can convert hydrogen peroxide to hydrogen sulfide.
The organism is probably a strict anaerobe.
2)The organism produces catalase.
http://media.pearsoncmg.com/bc/bc_0mastering/microbiology/coaching_activities/catalase_test_03.jpg
Select ALL appropriate statements regarding the pictured Catalase test result.
The catalase test can be used to identify genus and species of a test organism.
The image shows a negative test result.
The image shows a positive test result.
The organism tested is probably an aerobe or a facultative anaerobe.
The organism tested is protected against oxygen radicals.
2. The organism tested is probably an aerobe of a facultative anaerobe
3. The organism tested is protected against oxygen radicals
Two different bacterial samples, A and B, were tested with an Oxidase dry slide. This is a picture of the test results.
http://session.masteringmicrobiology.com/problemAsset/1556554/1/Oxidase_dry_slide_02.jpg
Select ALL appropriate statements regarding the pictured Oxidase test results.
Specimen A fermented cytochrome oxidase.
Specimen A produces cytochrome oxidase.
Specimen A does not produce cytochrome oxidase.
Specimen B fermented cytochrome oxidase.
Specimen B produces cytochrome oxidase.
Specimen B does not produce cytochrome oxidase.
2)Specimen B produces cytochrome oxidase.
http://media.pearsoncmg.com/bc/bc_0mastering/microbiology/coaching_activities/oxidase_dry_slide_02.jpg
Select ALL appropriate statements regarding the pictured Oxidase test results.
Specimen A shows a negative result
Specimen A shows a positive result
Specimen A is not a pathogen
Specimen B shows a negative result
Specimen B shows a positive result
Specimen B most likely has a respiratory chain that uses oxygen as a final electron acceptor.
2. Specimen A shows a positive result
3. Specimen A is not a pathogen
4. Specimen B shows a negative result
5. Specimen B shows a positive result
6. Specimen B most likely has a respiratory chain that uses oxygen as a final electron acceptor.
Select ALL appropriate statements regarding the pictured Catalase test result.
*The organism can convert hydrogen peroxide to water and oxygen.**The organism tested is probably an aerobe or a facultative anaerobe.*
*The organism tested is protected against oxygen radicals.*
*The image shows a positive test result.*
Select ALL appropriate statements regarding the pictured Oxidase test results.
*Specimen A produces cytochrome oxidase.*
*Specimen A shows a positive result*
*Specimen A most likely has a respiratory chain that uses oxygen as a final electron acceptor.*
*Specimen B does not produce cytochrome oxidase.*
*Specimen B shows a negative result*
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