value: 2.00 points You did not receive full credit for this question in a previo

Question

value: 2.00 points You did not receive full credit for this question in a previous attempt Polypeptide Representation and Side Chain Structure and Function Polypeptide AA1 Backbone AA2 AA3 AA4 AA50 AA51 to AA100 CH Side chains This is a representation of a polypeptide. AA1 indicates amino acid 1, AA2 indicates amino acid 2, and so on. An amino acid has a central carbon atom that is bonded to a hydrogen atom, an amino group, a carboxyl group and a side chain (also called an R group). The first three parts of the amino acld are indicated by the the blue boxes while the side chains are shown as molecular structures attached to the boxes. For simplicity, AA5-49 are not represented and R-groups are not shown for AA51-100. Use the figure shown here to determine if each of the following statements is true or false. Check all the statements that are true. The line connecting AA2 and AA3 represents a hydrogen bond between amino acids. The side chain (R group) of AA2 is typically classified as nonpolar When this polypeptide folds, the side chain (R group) of AA3 is capable of forming a hydrogen bond with a polar side chain (R group) from another amino acid side chain within AA51-100. The side chain (R group) of AA50 is typically classified as nonpolar

Explanation / Answer

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The true statements are

The side chain (R group) of AA50 is typically non polar because it does not have any electronegative atoms and does not have different charges.

The line connecting to AA2 and AA3 represent a hydrogen bond because of side chains of AA2 contains -NH2 with a positive charge and AA3 contains a -OH group with negative charge.

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