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X 4. Which functional group, if given on an exam as the answer to "name an...
From N to C terminus, name the amino acids in the polypeptide shown below using single-letter...
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...
9. Name the functional group(s) that are present in the acrolein molecule formed in th acrolein...
9. Name the functional group(s) that are present in the acrolein molecule formed in th acrolein test for fats and oils. no sorsd 10. Why lipids are not soluble in water? 5. Why would amino acids give a negative result in the Biuret Test for Proteins? 6. Oxytocin is a hormone; it is a 9-amino acid peptide. Predict the results (+ or -) of the following tests on oxytocin: Biuret test: Ninhydrin test: 7. Describe the structural difference between saturated...
I Parta A. -OH D. —NH2 B. o oro E. – SH c. o -C-0-H Which...
I Parta A. -OH D. —NH2 B. o oro E. – SH c. o -C-0-H Which two functional groups shown in the figure are present in all amino acids? O C and D OB and D O A and B O C and E O A and D
m ical reactions 8) Which of the following represents an amino acid in a basic solution...
m ical reactions 8) Which of the following represents an amino acid in a basic solution (pH-11)? A) R-CH-COOR -CH-COOH ENH2 R--CH-COOH R-CH-coo C) NH3 D) 3NH3 9) Which of the following is a zwitterion? B) NH2 R-CH-Coo E) NH2 A) R-CH-COO R-ch-cool R-ca-cooH R-ch-coo H2B) NH2C) NH3 D) NH3 R-ca-coo E) NH2 10) Which of the following amino acids has the lowest isoelectric point? A) glutamic acid B) lysine C) valine D) glycine E) methionine 11) Calculate the isoelectric...
8) Which of the following functional groups comprises a carbon atom bonded to a hydroxyl group?...
8) Which of the following functional groups comprises a carbon atom bonded to a hydroxyl group? A) Carbonyl B) Alcohol C) Ester D) Thiol 9) Which of these carbohydrates shown in the Fischer projection is D-galactose? A) B) CHO CHO } - OH H- } II 0 } H CH2OH CH OH CHO CHO H H- OH HOH H- OH H 애 -OH 아 CH2OH CH2OH 10) Which of the following is the structural polysaccharide in plants? A) Amylose B)...
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?...
Identify the kind of chemical catalysis and then identify which of the given amino acids can...
Identify the kind of chemical catalysis and then identify which of the given amino acids can act as a catalyst for the reaction. HN-C-Coo H ¢-Coo HN— _—-coo MN -COOHN- -c coo histidine glutamic acid serine methionine lysine O că-oá D D HOH glutamic acid serine lysine histidine methionine caro Сх OH , Which amino acid would catalyze the reaction? The reaction is an example of acid-base catalysis covalent catalysis O glutamic acid O serine lysine histidine O methionine metal...
4. Name the functional group that links two monosaccharides in a disaccharide. Would that be the ...
4. Name the functional group that links two monosaccharides in a disaccharide. Would that be the same kind of functional group linking monosaccharides in long-chain polysaccharides like amylose? Postlab Questions 1a) Formic acid or methanoic acid is completely soluble in water. Draw the secondary interaction of formic acid and water molecules. Be sure to specify what interaction takes place (e e dipole-dipole bond etc) n sodium hydroxide, NaoH is added to formic acid, the pH raised to 12. What happened...
Identify the functional groups present in ibuprofen. O Н.С. CH OH A) phenol and ketone B)...
Identify the functional groups present in ibuprofen. O Н.С. CH OH A) phenol and ketone B) carboxylic acid and phenol C) carboxylic acid and benzene ring Н3С. CH2 D) alcohol, ketone and benzene ring CH CH3 Which of the following molecules is aromatic? A B OH NH2 A) A OH B) B C) C NH2 DD What is the classification of the side chain R group in the amino acid shown here? + ཡ་ས་ཡ H2N-CH-C-0 A) acidic CH2 B) basic...
Name each of the following compounds, which contain a functional group. 3. Give the product for...
Name each of the following compounds, which contain a functional
group.
3. Give the product for each reaction. For
no reaction, write N.R.
e. f. Br CH3 O HO Br g. CH3CH2NH2 + HCI [H] h. CH3CH2OH + CH3CH2CH2-C-OH [H] i. CH3CH2CH2CH2-C-OH + CH3NH2
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...
9. Name the functional group(s) that are present in the acrolein molecule formed in th acrolein test for fats and oils. no sorsd 10. Why lipids are not soluble in water? 5. Why would amino acids give a negative result in the Biuret Test for Proteins? 6. Oxytocin is a hormone; it is a 9-amino acid peptide. Predict the results (+ or -) of the following tests on oxytocin: Biuret test: Ninhydrin test: 7. Describe the structural difference between saturated...
I Parta A. -OH D. —NH2 B. o oro E. – SH c. o -C-0-H Which two functional groups shown in the figure are present in all amino acids? O C and D OB and D O A and B O C and E O A and D
m ical reactions 8) Which of the following represents an amino acid in a basic solution (pH-11)? A) R-CH-COOR -CH-COOH ENH2 R--CH-COOH R-CH-coo C) NH3 D) 3NH3 9) Which of the following is a zwitterion? B) NH2 R-CH-Coo E) NH2 A) R-CH-COO R-ch-cool R-ca-cooH R-ch-coo H2B) NH2C) NH3 D) NH3 R-ca-coo E) NH2 10) Which of the following amino acids has the lowest isoelectric point? A) glutamic acid B) lysine C) valine D) glycine E) methionine 11) Calculate the isoelectric...
8) Which of the following functional groups comprises a carbon atom bonded to a hydroxyl group? A) Carbonyl B) Alcohol C) Ester D) Thiol 9) Which of these carbohydrates shown in the Fischer projection is D-galactose? A) B) CHO CHO } - OH H- } II 0 } H CH2OH CH OH CHO CHO H H- OH HOH H- OH H 애 -OH 아 CH2OH CH2OH 10) Which of the following is the structural polysaccharide in plants? A) Amylose B)...
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?...
Identify the kind of chemical catalysis and then identify which of the given amino acids can act as a catalyst for the reaction. HN-C-Coo H ¢-Coo HN— _—-coo MN -COOHN- -c coo histidine glutamic acid serine methionine lysine O că-oá D D HOH glutamic acid serine lysine histidine methionine caro Сх OH , Which amino acid would catalyze the reaction? The reaction is an example of acid-base catalysis covalent catalysis O glutamic acid O serine lysine histidine O methionine metal...
4. Name the functional group that links two monosaccharides in a disaccharide. Would that be the same kind of functional group linking monosaccharides in long-chain polysaccharides like amylose? Postlab Questions 1a) Formic acid or methanoic acid is completely soluble in water. Draw the secondary interaction of formic acid and water molecules. Be sure to specify what interaction takes place (e e dipole-dipole bond etc) n sodium hydroxide, NaoH is added to formic acid, the pH raised to 12. What happened...
Identify the functional groups present in ibuprofen. O Н.С. CH OH A) phenol and ketone B) carboxylic acid and phenol C) carboxylic acid and benzene ring Н3С. CH2 D) alcohol, ketone and benzene ring CH CH3 Which of the following molecules is aromatic? A B OH NH2 A) A OH B) B C) C NH2 DD What is the classification of the side chain R group in the amino acid shown here? + ཡ་ས་ཡ H2N-CH-C-0 A) acidic CH2 B) basic...
Name each of the following compounds, which contain a functional
group.
3. Give the product for each reaction. For
no reaction, write N.R.
e. f. Br CH3 O HO Br g. CH3CH2NH2 + HCI [H] h. CH3CH2OH + CH3CH2CH2-C-OH [H] i. CH3CH2CH2CH2-C-OH + CH3NH2
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