Gram Positive & Negative Bacteria : My Medical Mnemonics
Gram Negative Cocci from Rapid Revision by Dr. Sonu Panwar
Flagellar structure - Gram-positive and Gram-negative cells.
Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the gram-staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall sandwiched between an inner cytoplasmic cell membrane and a bacterial outer membrane.