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3 Answers
- 1 decade agoFavorite Answer
In addition to Blacksnow's comments, I would add that
gram negatives can realease endotoxins from their outer membrane and can cause toxic shock syndrome in humans
GC base contents of DNA are usually higher in gram positives
because of their difference in the cell wall compositions and strucutre they are susceptible to different antibiotics. for example gram positives are susceptible to penicillin whereas gram negative are not
they use different communication systems: gram positives use peptides (amino acid chain) to communicate with each other and other species whereas gram negatives use small molecules called homoserine lactones
hope these helps
Source(s): PhD in microbiology - Anonymous1 decade ago
GRAM-POSITIVE are those that retain a crystal violet dye during the Gram stain process
GRAM-NEGATIVE bacteria appear red or pink.
In Gram-negative bacteria, the S-layer is directly attached to the outer membrane. In Gram-positive bacteria, the S-layer is attached to the peptidoglycan layer
that's all i can think of...
- 1 decade ago
Gram positive bacteria has a thick cell wall with multiple layers of peptidylglycan while gram negative bacteria has a thin cell wall with a few layers of peptidyglycan.
Gram positive bacteria has no outer membrane but gram negative bacteria has a outer membrane of lipopolysaccharide (LPS).
Gram positive bacteria will be stained purple with crystal violet while gram negative bacteria will be stained pink with safranin red.
Source(s): Biology student