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Dental Biofilm Composition Quiz

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Questions and Answers

Which of the following is NOT an organic component of dental plaque biofilm?

Glycoproteins

Lipids

Sodium (correct)

Polysaccharides

What is a significant inorganic component of dental plaque biofilm?

Proteins

Calcium (correct)

Lipids

Intra-Cellular Matrix

Which combination of components accurately represents the composition of dental plaque biofilm?

Proteins and Phosphorus

Lipids and Sodium

Glycoproteins and Potassium

Intra-Cellular Matrix and Calcium (correct)

Which of the following does not belong to the inorganic category found in dental plaque biofilm?

Proteins Signup and view all the answers

Which of these components contributes to the structural matrix of dental plaque biofilm?

Polysaccharides Signup and view all the answers

What is biofilm primarily composed of?

One or more communities of micro-organisms embedded in glycocalyx Signup and view all the answers

What role does the pellicle play in the initial attachment of bacteria to teeth?

It serves as a thin layer of salivary proteins that bacteria can adhere to Signup and view all the answers

Which of the following is a primary coloniser in dental biofilm formation?

Streptococcus mutans Signup and view all the answers

What is the significance of attachment in the initial colonization phase of biofilm formation?

It triggers gene activation and facilitates intercellular communication Signup and view all the answers

What characteristic of biofilm makes it difficult to remove from surfaces?

The solid matrix of glycocalyx that anchors it firmly Signup and view all the answers

What is the primary function of quorum sensing in bacteria?

Regulating gene expression based on population density Signup and view all the answers

What occurs during secondary colonization of a bacterial biofilm?

Secondary colonizers attach to primary colonizers and form a coaggregated community Signup and view all the answers

What characteristic does a mature biofilm exhibit?

Mushroom-shaped colonies that support nutrient supply Signup and view all the answers

Which component of a biofilm serves as a protective barrier?

Extracellular slime layer Signup and view all the answers

What is the role of fluid channels in a biofilm?

Facilitating movement of nutrients and waste products Signup and view all the answers