Dental plaque is a complex group of microorganisms that adhere to one another and communicate with each other. What is this called?
A. A biohazard.
B. A biofilm.
C. A cavity.
D. A bacterial party.
Gram-positive bacteria have thick, multi-layered peptidoglycan composed of a sugar backbone and peptide side chains cross-linked by transpeptidase. After gram staining, the Gram-positive cell wall loses some of its large chunky peptidoglycan cell walls but keeps enough of it to retain the purple color or primary stain. This principle distinguishes gram-positive bacteria from gram-negative bacteria that do not retain the primary stain of purple color. The gram-negative gets decolorized and takes the counterstain colored reddish to pink.
Answer and Explanation: 1
Dental plaque is a complex group of microorganisms that adhere to one another and communicate with each other and called biofilm (option B).
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