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VMariaS [17]
4 years ago
7

If the chemical X-gal is added to nutrient agar, lactose fermenting colonies turn blue, while non-fermenting colonies appear whi

te. What sort of medium is X-gal agar?
Chemistry
1 answer:
xxMikexx [17]4 years ago
6 0

Answer:

C. Differential.

Explanation:

Differential media are bacteriological growth media that contain specific ingredients to allow one to distinguish selected species or categories of bacteria by visual observation. Examples of differential media includes:

Blood agar (used in strep tests) contains bovine heart blood that becomes transparent in the presence of β-hemolytic organisms such as Streptococcus pyogenes and Staphylococcus aureus.

Eosin methylene blue is differential for lactose fermentation.

Streptococcuseosin methylene blue (EMB), which is differential for lactose and sucrose fermentation.

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Consider the following voltaic cell:(b) In which half-cell does oxidation occur?
damaskus [11]

At the anode, half-cell oxidation occurs in a voltaic cell.

<h3>Voltaic Cell Principle</h3>

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Learn more about Voltaic cells here:-

brainly.com/question/27908270

#SPJ4

6 0
2 years ago
PLEASE HELP DUE IN 20 MINS I NEED HELP RIGHT NOW
butalik [34]
That looks like cells of a multicellular organism, so B.
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3 years ago
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