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17 Cards in this Set
- Front
- Back
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All of the following are examples of calcium phosphate minerals EXCEPT:
a. Brushite b. Apatite c. Whitlockite d. Octacalcium brushite e. Octacalcium phosphate |
d
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Univalent ions are more/less soluble than multivalent ions
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More; they pack relatively poorly and are attracted to water
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What is the heterogenous nucleation (aka: epitaxy)?
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the initiating template containing the first ions of crystal to be aligned by binding to surface of a protein
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All of the following are true of Phosphoryn EXCEPT:
a. Likely initiator protein for growth that produces final crystal b. has numerous Asp & Ser side chains c. it's sufrace is complementary in shape & size to HA unit d. it has binding sites for phosphate and hydroxide e. it has binding sites for hydrophobic molecules |
e
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Mucins
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mg/100mL: 30
Function: coat surfaces, lubrication |
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Lysozyme (antibacterial)
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mg/100mL: 1
Function:Lysis of gram + cell wall |
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Lactoferrin (antibacterial)
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mg/100mL: 1
Function: binds iron, thus limiting supply to bacteria |
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Peroxidase (antibacterial)
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mg/100mL: 1
Function: H2O2 + SCN -> H20 + OSCN converts thicyanate to hypothiocyanate |
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IgA (antibacterial)
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mg/100mL: 20
Function: major Ab in mucous secretions |
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Defensins (antibacterial)
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Function: cationic peptides that bind to & distrupt bacterial cell membranes
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Alpha Amylase (digestive)
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mg/100mL: 50
Function: Hydrolyzes alpha 1,4 glucosidic bonds |
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Lipase (digestive)
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mg/100mL:
Active at low pH |
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Proline Rich Proteins (PRPs) - (Pellicle Former)
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mg/100mL: 50
Inhibits crystal initiation & growth (calculus formation) |
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Statherin
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mg/100mL: 10
Similar to PRPs |
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Cystatins
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Protease Inhibition
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Histatins
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Bacteriostatic; Antifungal
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Which is true of Sialidase?
a. Secreted by oral bacteria b. Transforms mucins (salivary proteins) c. it's protein products are less hydrophilic & water soluble d. it's protein products are folded, aggregated e. its protein products are part of the enamel pellicle & plaque matrix, where they can be nutrients, adhesion sites for bacteria f. All of the above |
f
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