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Is acid fast bacteria gram positive or negative?
Acid-fast bacteria are gram-positive.
Is the acid fast stain positive or negative in the sample?
The acid-fast stain is positive in the sample.
Is the acid fast stain result positive or negative for the sample?
The acid-fast stain result is positive for the sample.
Is the acid fast staining result positive or negative for the sample?
The acid-fast staining result for the sample is positive.
Is klebsiella pneumoniae acid fast?
gram positive
Is staphylococcus aureus acid fast?
No, Staphylococcus aureus is not acid-fast. Acid-fast bacteria, like Mycobacterium tuberculosis, retain the stain when treated with acid-alcohol. Staphylococcus aureus is a Gram-positive bacterium that retains the crystal violet stain in the Gram staining method.
What gram reaction do you expect from acid-fast bacteria?
Gram positive
Are acid fast bacteria gram positive or negative?
Acid-fast bacteria are considered gram-positive. This term refers to bacteria that retain a specific stain under the Gram staining technique, indicating a thick peptidoglycan layer in their cell wall. Acid-fast bacteria, like Mycobacterium tuberculosis, have a waxy layer that resists conventional staining methods.
Is the mycobacterium smegmatis positive to acid-fast?
Yes, Mycobacterium smegmatis is positive for acid-fast staining due to its thick, waxy cell wall. This characteristic allows it to resist decolorization by acid-alcohol during the staining process, leading to retention of the primary stain (carbol fuchsin) and appearing pink or red under a microscope.
Are endospores acid fast?
Yes, endospores are acid-fast because their thick walls are resistant to most stains and dyes, including the acid-fast stain used in microbiology to detect mycobacteria like Mycobacterium tuberculosis. This resistance allows endospores to retain the stain even after decolorization with acid-alcohol.
Is Micrococcus luteus acid fast negative?
Yes, Micrococcus luteus is typically Gram-positive and non-acid-fast, meaning it does not retain the carbol fuchsin stain when subjected to acid-alcohol treatment in acid-fast staining methods like the Ziehl-Neelsen stain or Kinyoun stain.
What bacteria which are weak acid fast?
Mycobacterium avium complex (MAC) bacteria are weakly acid-fast, meaning they retain some of the carbol fuchsin stain when decolorized with acid-alcohol during acid-fast staining. This makes them appear weakly positive in acid-fast staining techniques.
