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What else can I help you with?
Is a gram stain of a throat swab useful for making a rapid presumptive diagnosis of strep throat?
NO
Why can't you use the gram stain on the pathogens?
Which pathogens can't you use the gram stain on? Some pathogens are gram negative such as Tuberculosis. Others are gram positive. Those you can stain with the gram stain. The differences have to do with the structure of the outer membrane. Not all pathogens are gram negatives. Staph and strep are gram positive. People die from Strep infections.
What class is strep throat bacteria in?
They are gram positive coccus type of bacteria.
Why is strep throat called a strep throat?
"Strep" is short for a genus of Gram-positive cocci called Streptococcus. Usually, the most common bacteria causing a throat infection (i.e. "strep" throat) is Streptococcus pyogenes.
Streptococci bacteria causing strep throat are in what group?
Gram positive cocci - arranged in chains
Is Rhodospirillum Rubrum gram positive or gram negative?
R, rubrum is Gram negative. Why? Because after the decolorizing agent Ethonal is added, it removes the purple from the the cell walls.. When the secondary or counterstain, safranin is added, the cell stains pink.
Does strep thoat have a cilia?
Strep throat is a disease not a bacteria. However the bacteria that causes the disease is called strep throat is caused by group A beta-hemolytic streptococcus ( S. pyogenes). Other bacteria such as non–group A beta-hemolytic streptococci and fusobacterium may also cause pharyngitis ("strep throat"). It is a Gram+ bacterium that looks like a string of pearls under the microscope and it has no cilia.
Does pH influence the gram stain reaction?
pH does not directly influence the Gram stain reaction. The Gram stain differentiates between bacterial cell wall structures based on their ability to retain or release crystal violet dye during the staining process. The process is not significantly affected by small changes in pH.
Do acid-fast bacteria stain gram-negative when subjected to the gram stain?
No, acid-fast bacteria do not stain gram-negative when subjected to the gram stain.
Is streptococcus pyogenes gram or gram?
i think is gram + It is gram positive, usually occurring in chains and pairs of gram positive cocci. It is also a beta hemolytic organism, meaning it will completely lyse RBC's in a zone around individual colonies. If you are using a Mannitol Salt agar medium, in this zone then it will be transparent.
Theories of principle of gram stain reactions?
Gram stain
What three types of data are obtained from the gram stain?
The three types of data obtained from a Gram stain are cell morphology (shape and size of the cells), cell arrangement (how cells are grouped together), and Gram reaction (whether cells are Gram-positive or Gram-negative based on their cell wall composition).
