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Urease, which is produced by some microorganisms, is an enzyme that is especially helpful in the identification of Proteus vulgaris. Although other organisms may produce urease, their action on the substrate tends to be slower than that seen with Proteus species. Therefore, this test serves to rapidly distinguish members of this genus from other non-lactose-fermenting enteric microorganisms.
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Explain how the urease test is useful for identifying members of the genus proteus?
Genus proteus is know for their fast hydrolysis of urea into ammonia. In presence of proteus the agar slant quickly turns pink (positve) while known proteus would be yellowish. The pink color is a sign of alkaline presence and the increase of pH (7-8.5) and phenol red is the pH color indicator. http://www.microbelibrary.org/Laboratory%20Diagnostics/details.asp?id=457&Lang=
What role does urease play in UTI?
The presence of urease indicates the presence of a specific bacteria called proteus. It's useful to identify the organism to determine the correct antibiotic to cure it.
Ratios are most useful in identifying?
Relationships
What is generally the least useful in identifying minerals?
Color is generally the least useful characteristic in identifying minerals, as many minerals can come in a variety of colors. Other properties, such as hardness, streak, cleavage, and specific gravity, are more reliable indicators for identifying minerals.
Is classification useful in identifying the characteristics of an unknown answer?
Yes.
Can classification be useful in identifying characteristics of an unknown organism?
Yes it can
Can classification can be useful identifying the characteristics of an unknown organism?
Yes it can
What constant properties that are most useful in identifying a substance?
Characteristic properties.
What test is useful for identifying carbonate?
The acid test is useful for identifying carbonates. When a drop of acid is added to a sample suspected to contain carbonate, it will produce bubbles of carbon dioxide gas if carbonate is present.
Of what value is urease to helicobacter?
Urease is essential for Helicobacter pylori because it helps the bacteria survive in the acidic environment of the stomach by hydrolyzing urea to produce ammonia. Ammonia helps neutralize the stomach acid, allowing H. pylori to colonize and persist in the gastric mucosa.
What is the least useful characteristic in identifying minerals?
Color is often the least useful characteristic in identifying minerals because many minerals can occur in a variety of colors due to impurities. Instead, properties like hardness, luster, cleavage, and streak are more reliable for identifying minerals.
Why isn't the colour of minerals the most useful way of identifying them?
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