Concept explainers
Interpretation:
Structure of alanine has to be drawn, label the
Concept introduction:
Many amino acids are linked together through amide bonds to form a biologically large molecule known to be proteins.
Amino acid had both amino functional group and carboxyl functional group in a molecule.
Amino functional group is
Each amino acid can be represented by both three letter short hand code as well as one letter code.
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Check out a sample textbook solutionChapter 18 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
- Write the name of the oligopeptide L-E-T-S-P-R-A-Y using their full amino acid names. Draw the structure of olgopeptide L-E-T-S-P-R-A-Y.arrow_forwardHow many different tripeptides can be formed from three different amino acids, glutamine, histidine, and lysine? Draw the possible structures. Using three-letter abbreviations, give the names for all of the possible tripeptides.arrow_forwardSketch the titration curve for the amino acid alanine with pka1 = 2.34 and pka2 = 9.69.arrow_forward
- E. Histidine is an amino acid with three titratable groups: an -NH," group (pK, = 9.2), a -COOH group (pK, = 1.8), and an imidazole (amine- like) group (pK, = 6.0). The titration curve for histidine is shown below with four points highlighted. (a) Identify which point on the titration curve corresponds to the pK, for each of the titratable groups, and which point corresponds to the pl. Explain your choices. (b) Calculate the value of pl for histidine. 14 12 10 6. 4 2- 2 3 Moles "OH added per mole histidine наarrow_forwardLEFT You have the following titration curve of an amino acid with a non-polar R-group with arrows on curve from (1) to (5). RIGHT. This amino acid has the following structures ((a) to (e)) at different points of the titration curve. Match each numbered arrow on the curve (from (1) to (5) with the appropriate amino acid structure (from (a) to (e)) 12 (5) H,NCHCOH + H NCHC (a) 10 (4) CH, CH Isoelectrie HNCHCO+ (b) point HNCHCO 43) CH CH (2) HNCHCOH H,NCHCO (C) CH3 CH3 0.0 0.5 1.5 20 NaOH equivalents HNCHCO (e) CH3arrow_forwardWhat is the pI for histadine?arrow_forward
- Draw a ceramide with a (16:1n-7) fatty acid attachedarrow_forwardwhat are 20 different amino acid names explain each of them and explain their 3 letter dimention,1 letter abbreviation.arrow_forwardIdentify the following amino acid at pH = 7 (aqueous form): (COO-)–CH(NH3+)–CH2–(COO-) aspartic acid asparagine histidine arginine lysinearrow_forward
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