Lecture 20 Flashcards
(25 cards)
1
Q
List the major Acidogenic Bacteria
A
1) Streptococcus mutans
2) Lactobacillus
3) Actinomyces
2
Q
What does complex biofilm maturation start with?
A
Single cell attachment
3
Q
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3
Q
What do Extracellular polymeric substances (EPS) matrix contains
A
- Polysaccharides
- Proteins
- Extracellular DNA (eDNA)
- Amyloid fibres
- Bacteriophages
4
Q
What is a virulence trait?
A
Acid production & acid tolerance
4
Q
What pH is S. mutans optimal at?
A
6
- But can even do glycolysis at pH <4
5
Q
What pH is Lactobacilu sspp. optimal at?
A
Low pH 3–4
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