QUESTION 1 5 points Save Answer Check all the amino acids that are often involve

Question

QUESTION 1 5 points Save Answer Check all the amino acids that are often involved in salt bridges (i.e. ionic bonds) because they have functional groups that are mostly charged (either positive or negative) at pH 7. QUESTION 2 5 points Save Answer Check all the amino acids that behave as polar (i.e. hydrophilic) because they tend to be found on the surface of proteins and can hydrogen bond to solvent molecules QUESTION 3 5 points Save Answer Check all the amino acids with side chain that has acid/base chemistry QUESTION4 5 points Save Answer Check the amino acids that have aromatic rings (either polar or non-polar). Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit

Explanation / Answer

Answer 1. Amino acid used in salt bridge are anionic carboxylate ( COO-) of either aspartic acid or glutamic acid and the cationic ammonium (RNH3+) from lysine or the guanidinium (RNHC(NH2)2+) of arginine.

Aspartic acid, glutamic acid, lysine, histidine and arginine.

Ans2. Serine, Theonine, glutamic acid, aspartic acid, Cysteine, asparagine, glutamine, arginine, lysine and histidine.

Ans3. Aspartic acid, glutamic acid, lysine, histidine and arginine.

Ans4. Phenylalanine, tryptophan, tyrosine,

Ans5. All amino acid can form amino acid and metal complex.

Ans6. Glycine, proline, alanine, Phenylalanine leucine, isoleucine and valine.

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