The extra - cellular polysaccharide sythesized by cariogenic streptococci in the presence of excess sucrose are best described as_______________?
Correct answer: D. Dextran-like glucan
- A. Mucopolysaccharide
- B. Amylopectin
- C. Glycogen - like glucan
- D. Dextran-like glucan
Explanation
Cariogenic streptococci use sucrose to form sticky extracellular glucans that help them adhere to enamel and build plaque; these are commonly described as dextran-like glucans. Amylopectin and glycogen-like glucans are not the characteristic plaque-forming products in this context.
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