Name_Rachel A Date TITILLEELELE PROTEINSI Questions 1. Which amino acids used in this experiment have acidic...
• Arginine: • Tyrosine: 1. Circle all the charged carboxyl groups (carboxylate groups) in the amino acid structures below. H2N-CH-CO H3N-CH-C-0 H3N-CH-c-0 H2N-CH-C- CH2 CH2 CH2 CH2 CH2 Glycine (Gly) c=0 CH2 o NH Glutamic acid or glutamate (Glu) ОН Tyrosine (Try) C=NH2 NH2 Arginine (Arg)
The chemical structures of the 20 standard amino acids at pH 7, along with their 3 and 1 letter codes, are givern in alphabetical order below. While the oxygen and nitrogen atoms of the peptide bonds may serve as a donor atom to complex a metal ion, very often the ligands for the metal come from the amino acid side chains. Takea few moments to examine the chemical structures of the different side chains. Circle the side chains that you...
A tRNA's anticodon is 5'GGC3! What amino acid is attached to it? Second base Uud Phenyia UA Tyrosine (Tyr) UAA Stop codon WA G Stop codon Yad Cysteine (Cys) (UGTA Stop codon (WE ) Tryptophan (Tip) MUG Leucine (Leu) CES Prol CA Histidine (is) EAG Gutamine (G) Arginine (Arg) First base Third base AAAsparagine AAC (Asn) soleucine (llo) Methionine (Met) IACA start codon Threonine (Thr) AG Serine (Ser) AG Arginine (Arg) AUG AAA Lysine (Lys) SAU Aspartic acid GAC (Asp)...
Will vote for correct answer! Thank you! Given the following four amino acids at pH 7.4, identify the amino acid and class. Be sure to scroll dow to see all four structures. basic asparagine H3N CH-C O neutral polar glutamine CH O hydrophobic O aspartate CH O glutamate O acidic CEO O neutral polar leucine H3N-CH -C-O isoleucine acidic CH CH O hydrophobic Valine basic O hydrophobic arginine CH -C O histidine basic CH (Continued below...) O acidic CH lysine...
questions e-f and g.and k. a) Use the 3 letter symbols for a 6 amino acid peptide chain containing at least one polar and at least one acidic or basic amino acid. (All at physiological pH.) Asp - Gly-Glu-Tyr- Phe- Ala OM b) Draw the primary structure with its peptide bonds, side chains, etc. in the correct order. CH3 NH - E-N -CH. - CH - C- 2-I U=0 -ch- & N-chi- CH₃ CH ₂ Coo CH н My Coo...
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...
Question 33 As applied to the chemistry of amino acids, what is the definition for the isoelectric point? O The pH at which the amino acid exists as a mixture of isomers. O The pH at which the amino acid exists primarily in its neutral form. The pH at which the amino acid exists primarily in its acidic form. Th The pH at which the amino acid exists primarily in its basic form.
Incorrect Question 16 0/1 pts This amino acid is +H3N—CH-0-0 CH2 CEO neutral aspartic acid. aspartic acid at its isoelectric point. aspartic acid at a pH that is lower than the isoelectric point. aspartic acid at a pH that is higher than the isoelectric point. Reconsider your answer! Since the nitrogen atom has a positive charge and both carboxylic acid groups have lost a hydrogen atom, this amino acid must be at its isoelectric point.
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
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...