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Rank these compounds based on their acidity (highest to lowest).   

Please use a blank sheet of paper for this problem and scan it and upload it right after the exam.   For the polypeptide sequence, His-Lys-Ala-Phe a. Draw the chemical structure of this polypeptide. (4 points) b. Circle the N and C termini of this peptide. (2 points) c. If this peptide His-Lys-Ala-Phe is treated with trypsin, draw the final products. Draw the actual chemical structures of the products for full points. (4 points)

The net charge (including all the groups) on the amino acid, Selenocysteine at pH of 5.7, is

You can select multiple answers. The most common types of secondary structures of a protein are: 

Estimate the net charge of the peptide at pH=6.5. Tip: Use the Handerson Hasselbach equation as needed. Highly recommended to upload the work for partial credits.

and are the examples of deviations from the central dogma of life? (fill in the blanks)

The pKa value of the conjugate acid of the side chain of Aspargine is [Hint: Think about how good of a base is it?]

“His stellar musicianship and technical virtuosity in both hands made him one of the greatest masters of the piano in any musical genre.” ( John Edward Hasse.) His harmonic imagination influenced the development of Bebop music that would follow him.

This big band drummer set a new standard for swing drummers, bringing clarity and balance to the drum set, as each sound he produced on woodblock, cymbal, cowbell or drum was at the precise dynamic level required.

This quintessential Swing recording features an all-star group that included saxophonists Coleman Hawkins, Chu Berry and the composer, Benny Carter, and a young Dizzy Gillespie along with the leader, one of the best known Swing Era soloists, who became a household name as a member of the Benny Goodman Quartet.