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Is alcaligenes faecalis positive or negative for urea?
Usually positive, but some strains may not.
What is the sign for multiplication and addition?
If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.
Negative 1000 divided by 100 equals what?
10
What is a positive integer plus a positive integer?
The result, in this case, is also positive.
Two positive integers and four negative integers are all multiplied together Is the final result positive or negative?
The final result is positive.
Is enterococcus faecalis positive or negative with the urea broth test?
Enterococcus faecalis is urea-positive, meaning it can hydrolyze urea in the urea broth test. This ability to break down urea into ammonia and CO2 can be detected by a change in pH indicator in the broth from yellow to pink.
What does a positive test result for urea hydrolysis look like?
Bright pinkish-red.
Why the color of urea is yellow?
Urea can turn yellow due to the degradation of urea into ammonia and biuret under certain conditions, such as exposure to high temperatures or alkaline environments. This process can result in the formation of colored compounds, which can give the urea a yellow hue.
What is proteus mirabilis results for urea test?
Proteus mirabilis is positive for the urea test, meaning it can hydrolyze urea, producing ammonia and raising the pH of the medium, causing a color change. This is due to the presence of the enzyme urease in Proteus mirabilis.
For which of the five hydrolysis tests would a positive test result be expected for the etiologic agent of gastric ulcer's helicobacter pylori?
Urea
What color is positive test result for glucose?
A positive test result for glucose is typically indicated by a color change to green, orange, or red, depending on the specific test method used.
Why is your pee orangiesh?
it is the color of urea
Why is it acceptable to record a positive result before the suggested incubation timne is completed but it is not acceptable to record a negative result early when doing a urea hydrolysis test?
Recording a positive result early is acceptable because some reactions may show positive results before the incubation time is completed due to accelerated enzyme activity. However, recording a negative result early for a urea hydrolysis test is not recommended because the reaction may need the full incubation period for urease activity to fully hydrolyze the urea and produce the correct result. This premature recording of a negative result may lead to inaccurate conclusions.
Positive result for bial-orcinol test?
bluish color if pentose is present.
What result does pseudomonas aeruginosa have on a urease test?
Pseudomonas aeruginosa typically shows negative results on a urease test, as it does not produce urease enzyme. This means it does not break down urea into ammonia and carbon dioxide, resulting in no change in pH and no color change in the test medium.
Is alcaligenes faecalis positive or negative for urea?
Usually positive, but some strains may not.
What color changes indicate a positive result for dische diphenylamine?
A positive result for dische diphenylamine test would be indicated by a deep blue color change in the solution. This color change indicates the presence of DNA, as dische diphenylamine reacts with deoxyribose sugars in DNA to produce a blue color.
