What color are gram positive and gram negative bacteria on a gram stain?

gram + are blue, gram – are red More test answers on https://studyhippo.com/10-17-intro-to-bacteriology-16/

what has been historically classified as Gram negative bacteria but is genetically more simialr to low G+ C Grm positive bacteria?

mycoplasmas More test answers on https://studyhippo.com/micro-11-1848/

Which has a thicker cell wall- gram positive or gram negative bacteria?

Gram positive More test answers on https://studyhippo.com/test-1-gram-pos-cocci-2756/

What color do gram negative bacteria stain?

pink More test answers on https://studyhippo.com/test-1-gram-pos-cocci-2756/

Gram negative bacteria with lipopolysaccharide layer that can be broken down and Lipid A is released

Endotoxins More test answers on https://studyhippo.com/fall-final-950/

Fimbriae & Pilli-gram negative bacteria-shorter, thinner & straighter than FLagella-used for attatchment and transfer of DNA rather then movement

Pilin= structure consisting of protein, arranged in helical around central core- divided into two types. FImbriae & pilli Fimbriae- used for attatchment-form biofilms-help bacteria stick Pilli- not MAIN role of attcmt but CONJUGATION-transfer DNA from one cell to another FImbria absent, then no disease can happen bc it cant colonize*help colonize mucous membranes (ex: gonorea) More test answers on https://studyhippo.com/micro-chapter-4-1631/

Serum sensitivity/resistance of Gram positive and Gram negative bacteria

–The complement system has the ability to kill many Gram-negative bacteria by cell lysis, using the membrane attack complex–Some pathogenic bacteria have the ability to resist complement lysisEx: Neisseriagonorrhoeae utilizes an outer membrane protein that binds to factor H, increasing the conversion of C3b to iC3b–Gram-positive bacteria are naturallyresistant to lysis by complement due to the thick peptidoglycan cell wall of these bacteria–However, Gram-positive bacteria still are opsonized by complement. More test answers on