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3. (9 pts) Glycerophospholipids A. (6 pts) Draw the structure of phosphatidylcholine at pH 7. Assuming...
Please help!! Draw the structure of the glycerophospholipid phosphatidylserine. • To save drawing effort, use R1...
Please help!!
Draw the structure of the glycerophospholipid phosphatidylserine. • To save drawing effort, use R1 to replace the glycerol backbone with its two esterified fatty acid chains (the RI term is C3 of the glycerol backbone). The R group tool is located in the charges and lone pairs drop-down menu. . Be sure to include double bonds where needed. • Indicate the correct charge on all atoms that are charged at neutral pH -O0O-F ChemDoodle At neutral pH, which...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon that is chiral (i.e., has 4 different groups attached) Chiral compounds rotate plane polarized light Memorize amino acid 1) structure, 2) classification (hydrophobic, aliphatic, aromatic, negatively charged, positively charged, polar uncharged) Be able to draw glycine (the generic amino acid) Given an amino acid structure and pKas of ionizable groups, be able to determine the charge at pH 1, pH 14, and pH 7...
Draw the following peptide tyrosine-cysteine-lysine-leucine. Identify the functional groups of the side chains by name and...
Draw the following peptide tyrosine-cysteine-lysine-leucine. Identify the functional groups of the side chains by name and label the peptide bonds, the N-terminus, and the C-terminus of the peptide. Also, what is the one letter code? Draw the membrane lipid phosphatidylserine with stearic acid and oleic acid attached to the glycerol-3-phosphate backbone in position 1 and 2, respectively. How are the individual parts of the molecule (glycerol, phosphate, serine, and fatty acids) connected to each other?
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains...
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains of the following pairs of amino acids (examples include salt bridges, H-bonding, disulfide bonds and dispersion forces)? Tyrosine and asparagine a) b) Leucine and proline c) two cysteines Give an example of two amino acids that could form a salt bridge (chemical structure or 3 letter d) code) 4. (10 pts) ldentify in which structural feature (1, 2" or 3" structure) of a protein...
pls answer 6 and 7 6. Secondary structure (turn): The image below is of a polypeptide...
pls
answer 6 and 7
6. Secondary structure (turn): The image below is of a polypeptide in secondary (20) structure level of protein folding. Specifically it is of a turn. Turns vary in length. The shorter the turn the more drastic the angle changes. The longer the turn, the more gradual the angles needed. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? Is this bond/interaction permanent or transient? d. What parts...
Question 6: 10 pts 5 pts (A) Draw the structure of: 1. Deoxyadenylic acid 2. Uridine...
Question 6: 10 pts 5 pts (A) Draw the structure of: 1. Deoxyadenylic acid 2. Uridine (B) Draw the two different dipeptides from L-tyrosine and L-alanine, showing the following in each structure. 1. the stereochemistry of the chiral centers 2. the N terminal 3. the C terminal 4, the peptide bond H3C OH OH NH2 NH2 HO L-alanine L-tyrosine ΝΗ, N pyrimidine purine NH O NH H,C, NH "NH NH NH H H H cytosine ( uracil (U; occurs in...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, n...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, non- polar, acidic, or basic: 6 (4 pts) The amino acid threonine (thr) has two chiral carbons. Draw a Fischer projection of the 2S,3S configuration of threonine. キ 7.(11 pts) Draw the tripeptide lys-asp-ser at physiological pH 8. (8 pts) The pK, values for aspartic acid are 2.10, 9.82...
1. (6 pts) A compound has a molecular formula of CHO a. Draw a structure of...
1. (6 pts) A compound has a molecular formula of CHO a. Draw a structure of a compound with the above formula that contains an ether group and one chirality Center b. Draw the structure of an ether that is a constitutional isomer of the compound drawn in part above 1 c. Draw the structure of a constitutional isomer of the compound drawn in part (a.) which contains a different functional group.
3) Consider the following structure: a) (6 pts) Draw two additional resonance structures for the following...
3) Consider the following structure: a) (6 pts) Draw two additional resonance structures for the following compound. Show curved arrows to convert between the resonance structures. (You need to redraw the molecule below) b) (4 pts) Circle the major contributor above. Explain your choice 4) (5 pts) For the following compound draw in the lone pairs, indicate if each lone pair is localized or delocalized and identify what type of orbital each lone pair is in
Mid-Term Examination Name CHM 121 1. Draw the structure indicating the stercochemistry of (R)-2-pentanol. (20 pts)...
Mid-Term Examination Name CHM 121 1. Draw the structure indicating the stercochemistry of (R)-2-pentanol. (20 pts) 2. Identify the relationship in the following pair A and B. Do the drawings represent compound? If they are stereoisomers, indicate which is R and which is S. (30 pts) constitutional isomers or stereoisomers, or are they just two different ways of drawing the same Cl CH2CH3 CI CH2CH3 Br 3. Draw full structural formulas, indicating all atoms, of each of the following. If...
Please help!!
Draw the structure of the glycerophospholipid phosphatidylserine. • To save drawing effort, use R1 to replace the glycerol backbone with its two esterified fatty acid chains (the RI term is C3 of the glycerol backbone). The R group tool is located in the charges and lone pairs drop-down menu. . Be sure to include double bonds where needed. • Indicate the correct charge on all atoms that are charged at neutral pH -O0O-F ChemDoodle At neutral pH, which...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon that is chiral (i.e., has 4 different groups attached) Chiral compounds rotate plane polarized light Memorize amino acid 1) structure, 2) classification (hydrophobic, aliphatic, aromatic, negatively charged, positively charged, polar uncharged) Be able to draw glycine (the generic amino acid) Given an amino acid structure and pKas of ionizable groups, be able to determine the charge at pH 1, pH 14, and pH 7...
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains of the following pairs of amino acids (examples include salt bridges, H-bonding, disulfide bonds and dispersion forces)? Tyrosine and asparagine a) b) Leucine and proline c) two cysteines Give an example of two amino acids that could form a salt bridge (chemical structure or 3 letter d) code) 4. (10 pts) ldentify in which structural feature (1, 2" or 3" structure) of a protein...
pls
answer 6 and 7
6. Secondary structure (turn): The image below is of a polypeptide in secondary (20) structure level of protein folding. Specifically it is of a turn. Turns vary in length. The shorter the turn the more drastic the angle changes. The longer the turn, the more gradual the angles needed. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? Is this bond/interaction permanent or transient? d. What parts...
Question 6: 10 pts 5 pts (A) Draw the structure of: 1. Deoxyadenylic acid 2. Uridine (B) Draw the two different dipeptides from L-tyrosine and L-alanine, showing the following in each structure. 1. the stereochemistry of the chiral centers 2. the N terminal 3. the C terminal 4, the peptide bond H3C OH OH NH2 NH2 HO L-alanine L-tyrosine ΝΗ, N pyrimidine purine NH O NH H,C, NH "NH NH NH H H H cytosine ( uracil (U; occurs in...
5. D-sorbital is found in 'sugar-free' chewing gum. It is formed by reducing D-glucose with NaBH Draw the structure of D-sorbital. s. (4 pts) Classify the following amino acid as polar, non- polar, acidic, or basic: 6 (4 pts) The amino acid threonine (thr) has two chiral carbons. Draw a Fischer projection of the 2S,3S configuration of threonine. キ 7.(11 pts) Draw the tripeptide lys-asp-ser at physiological pH 8. (8 pts) The pK, values for aspartic acid are 2.10, 9.82...
1. (6 pts) A compound has a molecular formula of CHO a. Draw a structure of a compound with the above formula that contains an ether group and one chirality Center b. Draw the structure of an ether that is a constitutional isomer of the compound drawn in part above 1 c. Draw the structure of a constitutional isomer of the compound drawn in part (a.) which contains a different functional group.
3) Consider the following structure: a) (6 pts) Draw two additional resonance structures for the following compound. Show curved arrows to convert between the resonance structures. (You need to redraw the molecule below) b) (4 pts) Circle the major contributor above. Explain your choice 4) (5 pts) For the following compound draw in the lone pairs, indicate if each lone pair is localized or delocalized and identify what type of orbital each lone pair is in
Mid-Term Examination Name CHM 121 1. Draw the structure indicating the stercochemistry of (R)-2-pentanol. (20 pts) 2. Identify the relationship in the following pair A and B. Do the drawings represent compound? If they are stereoisomers, indicate which is R and which is S. (30 pts) constitutional isomers or stereoisomers, or are they just two different ways of drawing the same Cl CH2CH3 CI CH2CH3 Br 3. Draw full structural formulas, indicating all atoms, of each of the following. If...
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