CH2 он Tyrosine Draw the structures of tyrosine as different pH values. Please refer to the lecture note for the pKa values b. Identify the structures that exist at pH 2 c. Solve for the pl а.

Give detailed Solution with explanation needed..don't give Handwritten answer

3. Draw the form of the amino acid that predominates at pH 11. ( H₂N-CH- pKa = 9.60 CH₂ pKa = 8.95 c=0 OH pKa = 3.65 4. At what pH will the following amino acid no longer migrate in an electric field? H₂N-CH- (CH2)4 pKa = 8.95 NH₂ pKa = 10.53 H₂N-CH- C 5. Draw the form of the amino acid that predominates at pH 6. (CH2)4 O OH pKa = 1.88 C NH₂ pKa = 10.53 -OH pKa = 2. 18 -OH pKa = 2.18 6. All the following forces help to stabilize the tertiary and quaternary structures except: (a) Hydrophobic interactions of nonpolar side chains (b) Hydrogen bonding (c) Electrostatic interactions between ionic groups (d) Disulfide bonds (e) Metallic bonds

1. Draw the structure of alanine in a solution at pH = 0 2. Draw the structure of alanine in a solution at pH = 12 3. Draw the structure of alanine in a solution at physiological pH (pH= 7.4)

Draw the structure of the peptide WAKEP. Write the full name of each amino acid above the relevant R-group. Mark all of the peptide bonds on your drawing. Mark the charged groups on your drawing. Assuming that pH = 7, what is the Net Charge for the peptide? Type your numeric answer and submit -7 X You are incorrect

please answer 1 and 2

ball & stick This amino acid is Not started Submit Answer - + labels to access important values if needed for this question. Retry Entire Group 9 more group attempts remaining < ENG 6

What would the dissociation equation for Histidine be if I were using these 3 different groups: carboxyl, amino, R group?

9. For the DNA segment with nucleotide sequence 5' TATCGC 3’, how many hydrogen bonds in total hold the base pairs between this segment and its complementary strand? А. 5 В. 6 С. 15 D. 18 E. Cannot be determined 10. What is the relation between the Fischer projection of two molecules below? H H- -OH Но- но- H- Но H- H- -OH- Но- CH2OH CH2OH A. C2 epimers В. СЗ ерimers C. Enantiomers D. Anomers E. Superimposable molecules Section B: True / False (10 marks) A group is deprotonated when its pKa value is lower than the pH of the solution. 1. T or F 2. a and B configurations are used to describe enantiomers. T or F 3. Hydrogen bond can be formed between two peptide bonds. T or F 4. A single strand of RNA has 20% U so it also has 20% A. T or F 5. Arginine's pI lies between 2.34 and 9.6. T or F 6. O-6 fatty acids have fewer double bonds than @-9 fatty acids have. T or F 7. The net charge of glycine changes at different pH. T or F 8. The hydroxyl group in threonine is deprotonated at high pH. T…

Solve both