Structure and Properties of Amino Acids The isoelectric point of an amino acid is defined as the pH where the carboxyl group is uncharged where the amino group is uncharged where the molecule carries no electric charge of maximum electrolytic mobility where the carboxyl group is uncharged where the amino group is uncharged where the molecule carries no electric charge of maximum electrolytic mobility ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids When the amino acid alanine (R-group is CH3) is added to a solution with a pH of 7.3, alanine becomes a zwitterions an isotope a cation nonpolar a zwitterions an isotope a cation nonpolar ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which pair of amino acids absorbs the most UV light at 280 nm? Trp & Tyrosine Cystein & Asparagine Threonine & Histidine Phenylalnine & Proline Trp & Tyrosine Cystein & Asparagine Threonine & Histidine Phenylalnine & Proline ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids The sulphur containing side chain of cysteine is hydrophobic, highly reactive and capable of reacting with another cysteine hydrophillc, highly reactive and capable of reacting with another cysteine ampiphillic, highly reactive and capable of reacting with another cysteine None of these hydrophobic, highly reactive and capable of reacting with another cysteine hydrophillc, highly reactive and capable of reacting with another cysteine ampiphillic, highly reactive and capable of reacting with another cysteine None of these ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which of the following is not a sensible grouping of amino acids based on their polarity properties? Phe, Trp, and Tyr Asp, Ile, and Pro Arg, His, and Lys Ala, Leu, and Val Phe, Trp, and Tyr Asp, Ile, and Pro Arg, His, and Lys Ala, Leu, and Val ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids The α-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ . 6.5, and 8.0 2.2, and 9.4 1.1, and 12.1 3.3, and 10.5 6.5, and 8.0 2.2, and 9.4 1.1, and 12.1 3.3, and 10.5 ANSWER DOWNLOAD EXAMIANS APP
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