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What indicates a test for catalase production is positive?
sugar
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Name a nonfermentative test in which gas production indicates a positive test result?
Nitrate Reduction Test
What is a false-positive?
A false-positive is a test result which incorrectly indicates that a particular condition or attribute is present. False-negatives can also occur.
Which sample gives a negative Biuret test and why?
Gelatin and egg albumin.
Is staphylococcus aureus positive for gelatin hydrolysis?
Bacillus cereus is positive for gelatin hydrolysis. This bacteria is capable of hydrolyzing gelatin(a protein), thus, a nutrient gelatin medium inoculated with this bacteria will remain liquid when placed in an ice bath (don't agitate).the bacteria had proteases that is responsible for the hydrolysis of the gelatin..
What test is used for determining the ability of bacteria to break down protein?
Gelatin Hydrolysis Test
After hydrolysis did sucrose give a positive test with fehlings test why orwhy not?
After hydrolysis sucrose did give a positive test. It reduces sugar that has hemiketal and hemiaetal in it.
How does streptococcus test for gelatinase?
The gelatin hydrolysis test is used to test if a microbe produces gelitinase. If the gelatin turns liquid that means gelatinase is present. Streptococcus is one of many strains that can be tested this way.
Did gelatin give positive result with xanthoprotic test?
yes,it give positive test
What hydrolysis test would a positive test result be expected for the etiologic agent of acne Propionibacterium acnes?
Triglycerides hydrolysis test because this bacterium feeds on fatty acids.
What does a positive test result for urea hydrolysis look like?
Bright pinkish-red.
What indicates a test for catalase production is positive?
sugar
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
What observation indicates a positive test for lipid?
If it is mixed well.
Is staphylococcus aureus positive for gelatin?
Yes it is. This test can be used to differentiate between S. aureus (which is positive) and S. epidermidis (which is negative).
Name a nonfermentative test in which gas production indicates a positive test result?
Nitrate Reduction Test
