Giardia intestinalis is not a bacterium; it is a protozoan parasite. Therefore, it does not undergo gram staining, which is a method used primarily for bacteria. Instead, Giardia is typically identified using microscopic examination or specific immunological tests. Its classification as a eukaryotic organism means it has a different cellular structure than gram-positive or gram-negative bacteria.
Gram Negative
no, it's eukaryotic. Gram staining is for bacteria.
No, acid-fast bacteria do not stain gram-negative when subjected to the gram stain.
Enterobacter cloacae is a Gram-negative bacterium. It will stain pink or red in a Gram stain procedure.
I don't believe that G. lamblia is either one. That is it cannot be identified via gram staining. A trichrome stain is needed to identify this bacteria. The trichome stain, originally a system of three colored dyes, illuminates the nuclei in the parasite and along with it's unique shape (that of a tear drop with two nuclei) identifies the parasite as giardia.
Gram Negative.
Gram negative
The answer to whether HIV gram-stain positive or negative is that HIV gram-stain is negative. They retain the light red or pink color after the stain.
Gram- negative bacteria turns red to pink after the gram stain is performed.
Bacteria are gram positive or gram negative. Serratia happens to be a gram negative bacteria. They appear pink on a gram stain. Gram positive bacteria stain to a purple color on a gram stain. We can classify and ID bacteria using their gram stain and shape. Some antibiotics only work on gram negative bacteria and some only work on gram positive bacteria. It helps a doctor know which antibiotic to use.
Gram positive
Contamination