To determine if a bacterium can ferment a particular carbohydrate and determine the end products of that fermentation
phenol red act as the pH indicator. As the substrate urea is split into products, the presence of ammonia caused alkaline environment that cause the phenol red to turn to deep pink. Useful to test Proteus vulgaris.
A solution of phenol red is a liquid.
It turns a yellow-ish color when CO2 is added.
RPMI (Roswell Park Memorial institute) formula is red in color because a pH indicator, phenol red, is usually added to it. When living animal cells are grown in RPMI formula, they release metabolic waste products that change the pH toward acid (sort of like peeing in a swimming pool). As the acid wastes build up, the color fades from red to pink, and can even turn straw yellow with a lot of waste product contamination. The phenol red color changes indicate when the medium needs to be changed, which can differ according to the needs of the project. Maybe at the pink pH stage, or at the yellow pH stage, for example. This avoids having to keep testing the contents of the test tube or flask to determine how the pH is changing. Too much acid, and the cells will do poorly, or even die. The 'old' medium is decanted and fresh medium is poured in, if the cells need to keep growing in the same test tube or flask.
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phenol red act as the pH indicator. As the substrate urea is split into products, the presence of ammonia caused alkaline environment that cause the phenol red to turn to deep pink. Useful to test Proteus vulgaris.
Phenol red in the medium is a pH indicator that changes color based on the pH of the solution. It helps to monitor the pH levels of the medium during cell culture experiments. Changes in color indicate changes in pH, allowing researchers to adjust the conditions accordingly.
Phenol red is red in its basic form.
Phenol red is made by condensation of Phenol and saccharine.pH below 6.8 = YellowpH above 8.2 = Red/FuschiaGradually turns from yellow to red/fuschia (pH between 6.8 and 8.2 = Pinkish)
Phenol red is a pH indicator that changes color in response to pH changes. It turns yellow in acidic conditions and red in basic conditions. When added to a solution containing baking soda (sodium bicarbonate), which is a basic substance, phenol red can turn red.
Phenol red is yellow at an acid pH.
A solution of phenol red is a liquid.
Phenol red in distilled water would produce a red color. This is because phenol red is a pH indicator that changes color based on the acidity of the solution. In neutral to basic solutions, phenol red appears red.
A benzene ring with one -OH.
Phenol red dropped into distilled water would give a red color. The color of phenol red varies with the pH: it is yellow below pH 6.8, red at pH 7.4, and pink or purple at pH above 8.2.
Phenol red is a red color at neutral pH. It changes color depending on the pH of the solution it is in.
No, sodium bicarbonate will not react with phenol red. Phenol red is a pH indicator that changes color based on pH levels, while sodium bicarbonate is a salt commonly used as an antacid.