Question

QUESTION 7 20 points Save Answer Bacteria can communicate with each other. When growing on our teeth, bacteria are releasing signals in order to determine density to excrete toxins determine bacterial density to grow together into a biofilm exchange antibiotic resistance genes fight of other species of bacteria QUESTIONS 20 points Save Answer this molecule is HO HN-C- - - -- a monosaccharide a dipeptide 2 amino acids connected by a peptide bond a nonpolar amino acid with a nitrogenous sidechain a polar amino acid with a nitrogenous sidechain

Answer 1

7. While growing on teeth, the bacteria releases signal to grow together into a biofilm. The bacteria communicate with each other via releasing some chemicals which help other bacteria to come and join to form a layer of polysaccharide around the surface of teeth. This layer of polysaccharide is called biofilm.

Hence, the correct option is (b)

8. The given molecule is of a dipeptide, in which two amino acids are joined by a peptide bond. In the given structure the CO-NH group present in the middle is of peptide bond, which joins two amino acids present on the either side.

Hence, the correct option is (b)

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