Homework Answers
Ans E ( serylalanine )
These peptide bond has been formed between seriene and alaniene .
Alanine is identified with presence of methyl group on amino acid and alanine group is identified with presence of CH2OH group on amino acid.
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Question 6 (10 points) Consider the R groups of the following amino acids: ELSE cysteine: -CH2SH;...
9) What type of attraction would you expect between the R groups of each of the following amino acids in a tertiary str...
9) What type of attraction would you expect between the R groups of each of the following amino acids in a tertiary structure of a protein? (see Table 16.2) a) proline and phenylalanine b) Aspartate and arginine c) Tyrosine and water d) Cysteine and cysteine e) Serine and tyrosine f) Leucine and alanine 2
9) What type of attraction would you expect between the R groups of each of the following amino acids in a tertiary structure of a protein?...
19) The form of dipeptide aspatylserine (Asp-Ser) obtained from two amino acids, aspartic acid an...
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...
Question 2 (1 point) Amino acids can be classified as A. Hydrophobic amino acids with nonpolar...
Question 2 (1 point) Amino acids can be classified as A. Hydrophobic amino acids with nonpolar R groups B. Polar amino acids with neutral R groups but the charge is not evenly distributed C. Positively charged amino acids with R groups that have positive charge at physiological pH. D. Negatively charged amino acids with R groups that have a negative charge at physiological pH. How would the amino acid alanine be classified? Think through your reasoning. L-Alanine H2N-CHC-OH CH3
Question 10 (10 pts) Peptides are biological oligomers formed by condensing multiple amino acids into an...
Question 10 (10 pts) Peptides are biological oligomers formed by condensing multiple amino acids into an amide backbone. Although this amide backbone is common to all peptides, the so- called 'side-chan' groups attached to this backbone vary depending the amino acids used in the condensation reaction. Shown below are four different tetrapeptides (so-named because they are the products of the condensation of four amino acids). Based on their structures, predict the order of elution that one might expect if separating...
14) Which of the following amino acids will by cation-exchange chromatography? following amino acids will be...
14) Which of the following amino acids will by cation-exchange chromatography? following amino acids will be retained longest in the column when sepa Η serne HO-CH-C-COO v. Lysine H3N-CH2CH2CH2CH2CH-co NES NH V. Phenylalanine CH-C–COOH II. Alanine CH3-C-Coo II. Cysteine HS-CH-c-coo® NE 15) What is the product obtained from mild oxidation of the thiol shown below? mild 2R-SH oxidation A) R-S- R B) R-OH C) R-S-S-R DR-OO- RE ) R-S-OH 16) Which bond in the following compound is a peptide bond?...
Understand protonation and deprotonation of carboxyl and amino groups in amino acids Question With reference to...
Understand protonation and deprotonation of carboxyl and amino groups in amino acids Question With reference to the image below, identify the change in glycine at pH less than 6.0. N – CH – C + H - H3N+ — CH- . H OH Select the correct answer below: O protonation O deprotonation O The pH and isoelectric point are equal. O All of the above FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
page 2 Chem 102 Work Shot 9.0 Dr.O. Amino Acids NAME_Sheena Thompson For each amino acid:...
page 2 Chem 102 Work Shot 9.0 Dr.O. Amino Acids NAME_Sheena Thompson For each amino acid: A. Draw a circle around the carboxylic acid group B. Drow a triangle around the c-amino group C. Draw a box (or rectangle or polygon) around the Rgroup in each amino acid D. Use hi-lighters or colored pencils on each name to classify the amino acids as one of the following: 1. Nonpolar 2. Polar neutral 3. Polar acidic 4. Polor basic NH CO_H...
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3...
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3 R-C=CH-Coo NH3 NH3 NH3 ONH 3 D) coo B) E) 2) Which of the following amino acids has a sulfur in the R group? A) serine B) cysteine C) asparagine D) tyrosine E) leucine 3) Which of the following terms describes the side chain of valine? A) acidic B) basic C) charged, polar D) uncharged, polar E) nonpolar 4) Which of the following is...
PRELAB ASSIGNMENT 1 Draw the structure of the amino acid son CH-OH Label the alpha carbon...
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...
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor...
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor D amino acids both L and D amino acids D-amino acids Question 2 (1 point) o be Polar R groups, along with acidic and basic R groups are said Question 2 (1 point) Polar R groups, along with acidic and basic R groups, are said to be.because the are attracted to water molecules. hydrophobic hydrophilic ionized unreactive Question 3 (1 point) Which of the...
9) What type of attraction would you expect between the R groups of each of the following amino acids in a tertiary structure of a protein? (see Table 16.2) a) proline and phenylalanine b) Aspartate and arginine c) Tyrosine and water d) Cysteine and cysteine e) Serine and tyrosine f) Leucine and alanine 2
9) What type of attraction would you expect between the R groups of each of the following amino acids in a tertiary structure of a protein?...
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...
Question 2 (1 point) Amino acids can be classified as A. Hydrophobic amino acids with nonpolar R groups B. Polar amino acids with neutral R groups but the charge is not evenly distributed C. Positively charged amino acids with R groups that have positive charge at physiological pH. D. Negatively charged amino acids with R groups that have a negative charge at physiological pH. How would the amino acid alanine be classified? Think through your reasoning. L-Alanine H2N-CHC-OH CH3
Question 10 (10 pts) Peptides are biological oligomers formed by condensing multiple amino acids into an amide backbone. Although this amide backbone is common to all peptides, the so- called 'side-chan' groups attached to this backbone vary depending the amino acids used in the condensation reaction. Shown below are four different tetrapeptides (so-named because they are the products of the condensation of four amino acids). Based on their structures, predict the order of elution that one might expect if separating...
14) Which of the following amino acids will by cation-exchange chromatography? following amino acids will be retained longest in the column when sepa Η serne HO-CH-C-COO v. Lysine H3N-CH2CH2CH2CH2CH-co NES NH V. Phenylalanine CH-C–COOH II. Alanine CH3-C-Coo II. Cysteine HS-CH-c-coo® NE 15) What is the product obtained from mild oxidation of the thiol shown below? mild 2R-SH oxidation A) R-S- R B) R-OH C) R-S-S-R DR-OO- RE ) R-S-OH 16) Which bond in the following compound is a peptide bond?...
Understand protonation and deprotonation of carboxyl and amino groups in amino acids Question With reference to the image below, identify the change in glycine at pH less than 6.0. N – CH – C + H - H3N+ — CH- . H OH Select the correct answer below: O protonation O deprotonation O The pH and isoelectric point are equal. O All of the above FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
page 2 Chem 102 Work Shot 9.0 Dr.O. Amino Acids NAME_Sheena Thompson For each amino acid: A. Draw a circle around the carboxylic acid group B. Drow a triangle around the c-amino group C. Draw a box (or rectangle or polygon) around the Rgroup in each amino acid D. Use hi-lighters or colored pencils on each name to classify the amino acids as one of the following: 1. Nonpolar 2. Polar neutral 3. Polar acidic 4. Polor basic NH CO_H...
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3 R-C=CH-Coo NH3 NH3 NH3 ONH 3 D) coo B) E) 2) Which of the following amino acids has a sulfur in the R group? A) serine B) cysteine C) asparagine D) tyrosine E) leucine 3) Which of the following terms describes the side chain of valine? A) acidic B) basic C) charged, polar D) uncharged, polar E) nonpolar 4) Which of the following is...
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...
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor D amino acids both L and D amino acids D-amino acids Question 2 (1 point) o be Polar R groups, along with acidic and basic R groups are said Question 2 (1 point) Polar R groups, along with acidic and basic R groups, are said to be.because the are attracted to water molecules. hydrophobic hydrophilic ionized unreactive Question 3 (1 point) Which of the...
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