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Choose the amino acids from the list below that could combine to give the following dipeptide....
19) The form of dipeptide aspatylserine (Asp-Ser) obtained from two amino acids, aspartic acid and serine, whose structures are shown here, is HiN-CH-C-0HIN-CH-C-0 CH2 CH OH aspartic acid serine A HN-CH-C-o-N-CH-C-o CH OH CH2 coo -(H-C-o-H-c-o CH OH CH2 HIN CH-C-N-CH-C-O CH OH CH H-CH-CH CH CH OH coo- 20) Where is the peptide bond located in this dipeptide? serine valine a) the CO-NH joining serine and the valine b) the doubly bonded oxygen just left of center between the...
From N to C terminus, name the amino acids in the polypeptide shown below using single-letter codes. (Do not use punctuation marks or spaces to separate the letter (ie. if the 3 amino acids are A, B and C, write the sequence as ABC) 0 - 0- CH3 6- H₃C CH₂ Han CH2 CH2 CH-CH3 CH2 CH3 CH2 CH2 NH3 Which of the following is NOT a naturally occurring amino acid? OA) H3NCH-Coo OB) H3NCH-Coo CH2 он Oc) HNCH-Coo CH-OH...
1. Which is a true statement about amino acids? a. They are amphiprotic b. The a-carbon has an ester attached c. They are symmetrical d. They are planar e. The α-carbon has a phosphate group attached 2. Which is an incorrect statement regarding the side chains of amino acids? a. Tryptophan, tyrosine, and phenylalanine contain an aromatic group. b. Isoleucine, and leucine are isomers of each other. c. Lysine and methionine contain an amine group. d. Threonine, serine, and tyrosine...
PRELAB ASSIGNMENT 1 Draw the structure of the amino acid son CH-OH Label the alpha carbon acid Sorine (en) which has R MO CHE OH CH2 OH 2. Draw the dipeptide that forms betw the peptide bond. s between serine and alanine The dipeptide sequence is Ser Ala Lace CH NCH H, A - — сH — с CH2 OH 3. How many amino aci arty amino acid residues are in a polypeptide containing 6 peptide bonos How many peptide...
R3 R4 он он R5 R6 amino group OH carboxyl CH сн, R1 group н сн, н сн, н сн, сн, —CH H,N C OH N-C -N-C-C-N-C NICIC-N-C H O HOHH O HO H CIO HICIH I-N Search... How many amino acids are shown in the polypeptide below? (Hint: count the R groups) How many peptide bonds are shown in the (Hint: peptide bonds are polypeptide below? between which two atoms?) R3 R4 Он он R5 O R6 amino group...
b) Show the dipeptide formed by the following two amino acids: + H₂N-CH-Coo- H₂N-CH-COo + + H₂N CH₂ 1 CH₂ 1 SH Phenylalanine Cysteine eys Phe
7. Below is the structure of lysine in its hypothetical neutral form. Choose the structure of lysine as it would exist in aq. solution at neutral pH. O HN-CH-C-OH CH CH CH CH NH2 lysine . HUN-CH-C- CH-8- -OH ---- H2N-CH HN- OH CH2 H₂N-CH 1 CH2 CH2 1 CH2 H₂N -CH- CH2 CH2 CH2 CH2 CH2 CH CH CH2 CH CH2 CH2 CHE CH2 CH2 NH CH2 CH2 NHS NHS NH3 E NH2 D с B А
1. What amino acids do the following abbreviations stand for? Draw the structure of each. a) lle b) Thr c) Gin 2. Name and draw the structures of the amino acids that fit these descriptions: a) Contains an isopropyl group b) Contains a secondary alcohol group 3. Which of the following objects is chiral? a) A pair of scissors b) A comb c) A drinking glass 4. What does the term achiral mean? Give two examples involving organic structures.. 5....
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...
Please answer all questions. The answer to question #2 is incorrect. 2 1 attempts left Check my work Which of the following amines can be used to resolve a racemic mixture of amino acids? Select all that apply. 0.5 points NH2 HIH eBook Ho Print NH2 References Be sure to answer all parts. The structure of the amino acid sequence Gly-His-Leu is shown below. Select the letters that correspond to the N-terminal(s), the C-terminal(s), and amide bond(s). (CH3)2CHCH2 0.5 points...