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Oral microbiology
Oral diseases
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Supragingival plaque
Subgingival plaque
Sugar metabolism
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Periodontal bacteria
Sugar metabolism
With regards to carbohydrate metabolism by oral streptococci, which of the following are true and which are false?
True
False
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a
glycolysis is controlled by allosteric inhibition
b
pyruvic acid is an end-product of heterofermentation when NADH
2
levels are low
c
in homofermentation the number of moles of lactic acid produced per mole of glucose is greater than during heterofermentation
d
Streptococcus mutans
can metabolise sorbitol and produce acid as an end-product
e
the phosphoenolpyruvate phosphotransferase system (PEP-PTS), expends energy to transport glucose into the cell
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