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fructose-blue to brick-red precipitate
glucose-unchanged (blue to blue)
lactose-unchanged
galactose-unchanged
ribose- blue to brick-red precipitate
sucrose-unchanged
starch-unchanged
this test is to identify the ketoses. thus, from the results, only fructose and ribose are ketoses. fructose is ketohexose as it changed color in 20 minutes whereas ribose is ketopentose as it changed color in 10 minutes only.
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∙ 12y ago
The Lasker-Enkelwitz test is used to diagnose aortic insufficiency. A positive test result is indicated by the presence of a diastolic murmur heard best at the left sternal border. Further evaluation with imaging studies like echocardiogram or cardiac MRI may be needed to confirm the diagnosis.
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Name a nonfermentative test in which gas production indicates a positive test result?
The oxidase test is a nonfermentative test in which the presence of gas bubbles indicates a positive result. Gas bubbles result from the reaction of the test reagent with cytochrome c oxidase, which is present in certain bacteria like Pseudomonas species.
What is the Lactococcus lactis ssp lactis oxidase test result?
The oxidase test result for Lactococcus lactis ssp lactis is negative. This bacterium lacks the enzyme cytochrome c oxidase that is needed to produce a positive result in the oxidase test.
Biochemical test results for proteus vulgaris?
Biochemical tests commonly used to identify Proteus vulgaris include urease test (positive result), indole test (negative result), motility test (positive result), citrate test (negative result), and carbohydrate fermentation tests (positive results for lactose and sucrose, negative result for glucose). These tests together help in confirming the presence of Proteus vulgaris in a given sample.
When you warm the test tube crystal of iodine what is the result?
When you warm the test tube crystal of iodine, it sublimes from a solid to a purple gas, leaving a yellow residue in the test tube.
Is acetaminophen will give positive result to Lassaigne's test and ferrox paper test?
Acetaminophen is not expected to give a positive result in Lassaigne's test for nitrogen and sodium due to its lack of nitrogen-containing functional groups. Similarly, it is unlikely to give a positive result in the ferrox paper test, which is typically used for detecting the presence of phenols.
What is the birth name of Lawrence Lasker?
Lawrence Lasker's birth name is Lawrence Charles Lasker.
What is the birth name of Dennis Lasker?
Dennis Lasker's birth name is Dennis John Lasker.
When was Jonathan Lasker born?
Jonathan Lasker was born in 1948.
When was Andrew Lasker born?
Andrew Lasker was born in 1982.
When was Albert Lasker born?
Albert Lasker was born in 1880.
When did Albert Lasker die?
Albert Lasker died in 1952.
When was Lasker Award created?
Lasker Award was created in 1946.
How tall is Dennis Lasker?
Dennis Lasker is 5' 10".
When was Dennis Lasker born?
Dennis Lasker was born in July 1954.
When was Myles Lasker born?
Myles Lasker was born in c. 1893.
What is Emanuel Lasker's birthday?
Emanuel Lasker was born on December 24, 1868.
When was Emanuel Lasker born?
Emanuel Lasker was born on December 24, 1868.
