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Lactose fermentation mac conkey test which color indicate a positive test?
MacConkey agar is yellow (due to the lactose in the agar). When an organism consumes the lactose, the agar turns purple. Purple indicates a positive test. If the organism doesn't use the agar, the agar stays yellow.
Why did the colonies on the MAC plate turn pink?
The colonies that grew on MAC plate took up lactose from the medium for their metabolism and released an end product that caused the pH indicator of the medium (neutral red) to turn pink. Hence the colonies appears pink in color.
What is the color of mac conkey agar of klebsiella?
It's pink, since it can use lactose as it's nutrition source
What is Mcconkey agar media?
It's a differential agar used to differentiate between lactose fermenters and non-lactose fermenteing bacteria. Chemical composition of Mac Conkey agar Peptone 20.0g Trehalose 10.0g Bile salts(Difco) 1.5g Sodium Cloride 5.0 Neutral Red 0.05g Crystal Violet 0.001 Agar 15.0g Distelled water 1.0 liter pH: 7.4±0.2 (25 °C)
How is the colony on Mac Conkey agar?
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Can yeast grow on MAC agar?
Yes, yeast can grow on MacConkey (MAC) agar, although it is primarily designed for the isolation of Gram-negative bacteria, particularly enteric bacteria. MAC agar contains bile salts and crystal violet, which inhibit the growth of Gram-positive organisms, but many yeasts, such as Candida species, can still grow on this medium. However, the growth of yeast may not be as prominent or well-defined as that of bacteria.
Why do you suppose that plate counts for urine infections are made from the blood agar plate not the MAC plate?
Plate counts for urine infections are typically made from blood agar plates rather than MacConkey (MAC) plates because blood agar supports the growth of a wider range of bacteria, including fastidious organisms that may not grow well on MAC plates. Blood agar provides the necessary nutrients and allows for the detection of hemolytic activity, which can be important for identifying certain pathogens. Additionally, urine samples often contain mixed flora, and blood agar can help in isolating and quantifying the relevant pathogens more effectively.
What is the function of the mac?
the MAC protocol is responsible for multiple access resolution.
Will the Brother MFC-495CW Color Multi-Function Center Printer work with a MAC computer?
Brother MFC-495CW Color Multi-Function Center Printer work with a MAC computer as it is compatible with MAC computer
What is a Mac plate?
A Mac plate is a dish made by combining macaroni and cheese with other ingredients like bacon, lobster, or truffles. It is a popular comfort food known for its indulgent and rich flavors.
What agar plates are streaked for a wound culture?
Bap & mac only
What are the general forms of media used in a microbiology laboratory?
Common forms of media in a microbiology laboratory include agar plates (solid media), liquid broths, and semi-solid media like agar deeps or slants. These media are used to culture and grow microorganisms for various purposes like identification, isolation, and research. They can be supplemented with nutrients, pH indicators, or antibiotics depending on the specific needs of the experiment.
