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The following amino acid structure exists at high pH. H2N-CH- Select one: O True O False
True or False: HCIO is a stronger acid than HIO Select one: O True O False True or False: H2CO3 is a stronger acid than H2SO4 Select one: True O False True or False: NH3 is a stronger acid than PH3 Select one: O True O False True or False: Hl is a stronger acid than HBr Select one: O True False True or False: HCl is a stronger acid than H2S Select one: O True O False
The correct structure for Lysine at pH 2.5 is: O H2N-CH-C 0 *HAN-CH=C- o H2N-CH-C-OH "HN-CH-C-OH CH2 CH2 CH2 CH2 CH CH CH2 CHE ÇH₂ NH2 NH, NH NH" b
Which of the following describes the pI of an amino acid? Select one: Oa. the pH at which the amino acid is primarily in the zwitterion form b. the pH at which there are equal concentrations of protonated and neutral forms c, the negative log of the concentration of the ionized amino acid d. the pH of the buffer solution used in electrophoresis that causes the amino acid to migrate to the positive electrode 0 O
+ 2. Drow the structure the amino acid serine of H₂N-CH-C-o CH-OH a) in acidic solution at a pH below isoelectric point. is) in basic solution at a pH above isoelectric point
Identify the structural components of an amino acid and understand the chemical diversity of amino acids Question Coo- Anch H₂N-CH2 H2C CH Proline Proline's structure has a unique feature not found in other amino acids. What is it? Select the correct answer below: O Proline is chiral. O The amino group is part of the side chain. O Proline is positively charged. O Proline is achiral. P FEEDBACK MORE INSTRUCTION SUBMIT Content attribution Understand protonation and deprotonation of carboxyl and...
Amino acid metabolism is not a single pathway. O True O False
Nucleotides contain a phosphate, a sugar and an amino acid Select one or more: a true b. false
True or False: HIO3 is a stronger acid than HIO2 Select one: True False True or False: H2PO4 is a stronger acid than HPO47- Select one: True False True or False: H2S is a stronger acid than H2Se Select one: True False True or False: He is a stronger acid than HCI Select one: True False True or False: H2SO4 is s stronger acid than H2SO3 Select one: True False
true or false. at physiological PH, nearly all amino acids have overall positive charge True False 1) At physiological pH, nearly all amino acids have an overall positive charge. 2) The dipeptide abbreviated as Gly-Lys is the same as the dipeptide abbreviated as Lys-Gly. tide 3) The peptide sequence Gly-Gly-Gly gives the primary structure of a tripeptide. 4) The u-helix is a secondary structure. 5) The triple helix of collagen is a tertiary structure.
Amino Acids SW C2 9. Which of the following is an L-amino acid? çoo coo coo HẠN |-R HANH, HẠN –H HÀNH R coo B. 10. The following questions refer to the structures A-E below: (a) Which represents the structure of an amino acid at very high pH? (b) Which is a zwitterion? (c) Which represents the structure of an amino acid at very low pH? (d) Which structure/(s) is/are) not possible? R-CH-COOR-CH-COOH R-CH-COOH R-CH-COOR -CH-COO NH2 NH2 *NH NH2...