Choose any/all amino acids that have a charged/ionized R group at physiological pH. Group of answer choices Arginine (Arg) Asparagine (Asn) Isoleucine (Ile) Valine (Val) Glutamine (Gln) Lysine (Lys)
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Choose any/all amino acids that have a charged/ionized R group at physiological pH.
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- Which of the following combination is are non-essential amino acids? A. Leucine and Isoleucine B. Isoleucine and Methionine C. Methionine and Asparagine D. Proline and AlanineChoose any/all amino acids that have an uncharged/polar R group at physiological pH. ARG-ARGININE LYS-LYSINE VAL-VALINE GLN-GLUTAMINE ASN-ASPARAGINE ILE-ISOLEUCINEWhich of the following statements is TRUE when aspartic acid in a protein is positioned in proximity with glutamic acid? The pKa of aspartic is increased. The proton dissociation from aspartic acid side chain is favored. The pKa of aspartic acid is decreased The pKa of aspartic acid is unaffected.
- Which of the following amino acids is most likely to be found on the outside of a soluble protein? Which is more likely to be found on the inside? Explain each answer. (Hint: Consider the effect of the amino acid side chain in each case and that the protein is folded up into its globularform.)(a) Leucine (b) Glutamate(c) Phenylalanine (d) GlutamineWhich of the following correctly describes the 3 amino acids that are most likely to undergo phosphorylation? a) Serine, threonine, tyrosine b) Cysteine, tryptophan, tyrosine c) Serine, tyrosine, cysteine d) Tyrosine, asparagine, serineDescribe the amino acid illustrated here (Identify the following amino acid (at pH = 7.0): (COO-)–CH(NH3+)–CH2–CH2–CH2–CH2–(NH3+)) (at pH = 7.0). it is a polar, negatively-charged amino acid it is a non-polar, negatively-charged amino acid it is a polar, positively-charged amino acid it is a non-polar, positively-charged amino acid it is a non-polar, uncharged amino acid
- which of the following amino acids is considered an essential amino acid? a) serine b) alanine c) valine d) tyrosineWhen an inappropriate amino acid is substituted in place of another, as occurs in certain genetic disorders, the resulting protein is either poorly functional or non-functional. Since proteins contain hundreds if not thousands of amino acids, why should the change of a single amino acid be so critical?Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. Glutaminc Acid, Threonine, Tyrosine, Valine, and tryptophan
- Which of the following pairs of amino acids can have intermolecular hydrogen bonding between the functional groups in their side chains? Select all that apply. phenylalanine and tyrosine two tyrosine residues serine and threonine alanine and threonineList the name of two amino acids that belong to each of these type of amino acids: Nonpolar (hydrophobic) polar(uncharged) positively charged (basic) negatively charged (acidic)Which one of the following pairs are semi-essential amino acids for humans? A. Histidine and tryptophan B. Tyrosine and arginine C. Arginine and histidine D. Valine and lysine