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Would it be useful to perform a gram stain on a mixed culture?
The purity of a culture of bacteria is important so it can test on that one type of bacteria. Gram staining can be good so you make sure everything in the streak plate is one color showing that it is gram positive and gram negative.
What gram reaction would you expect if you used a culture that was growing for 72 hours?
Gram negative
What is a gram variable bacteria?
gram-positive bacteria but can become gram negative if the smear is left to culture for a long period of time.
What are some sign of culture for homo habilis?
the answer for that is he had no culture
What is S Acin in a urine culture report?
what does a report mean when is say 1,000-10,000 CFU/ml of Gram positive cocci and Gram negative bacilli. Is this a positive culture?
Suppose you are viewing a Gram stained field of red rods and purple cocci through the microscope What do you conclude?
The rods will be gram negative, the cocci are gram positive: most likely, the slide was made from a mixed culture of bacteria, or the culture was contaminated.
Sputum Culture-gram positive cocci?
Sounds pretty typical.
Why are contrasting colors important in gram staining?
# Suppose you performed a gram stain on a sample from a pure culture of bacteria and observed a friend of red and purple cocci. Adjacent were not always the same color. What do you conclude? # ## The bacteria was not a pure culture.
Is the gram of influenza negative or positive?
(sign) Glucose is a carbohydrate (or sugar). Gram positive or negative refers to a bacterial cell wall and whether or not they take up certain stains. Glucose will be neither since glucose is a molecule and not a bacterial cell.
How is the Gram stain technique be of value in establishing purity of a culture of bacteria?
deffirent bacteria show different response to gram stainig procedure so bacteria are classified into two groups:a(gram positive bacteria)b(gram negitive bacteria)
What are the factors that can result in variable gram reaction?
Genetics, Age of culture, type of growth medium, and technique used could result in a gram-variable reaction
WHAT significane is her work to your culture?
a mandatory sign - you have to obey it.
