charge? Capn om heraion piot aove, at which point wouid the amino acid ave ts s
ID: 208146 • Letter: C
Question
charge? Capn om heraion piot aove, at which point wouid the amino acid ave ts s 2 6 4 maximum negative d. 6 Fron, the teation plet above, what does port labeled represen apn a. The fuly protonated form b. The ph with maximum negative charge c. The end point of tration with base (OH-) d. The pl of the amino acid e None of these 24 Which of the tollowing corredtly describes peptide bonds? (2 pr a. They are special type of amide bond. b. They are a very stable bonds c.They are formed when water splt out from an annogroup and a d They are a bond which displays resonance e. All of the above 25 Which groups of a pair of amino acids must react to form a peptide bond? (2 po 28. Vhich is the C-terminal amino acid in the peptide ALA-GLNARG-SER-HIS? (2 pt) 27. The peptide bond- (2 a is formed by elimination of water between two amino groups in an amino acid b. limits the possible orientations of the peptide backbone in a protein c has acidic and basic characteristics d a and b only e all of the aboveExplanation / Answer
22 and 23.. incomplete information.
24. E. All of the above.
Peptide bond is a special type of amide bond, which shows partial double bond character. Very stable and rigid bond. One water molecule is released to form a -CONH bond. It shows resonance also.
25. Amino group of one amino acid and carboxylic group of another amino acid must react to form a peptide bond.
26. ALA is the N-terminal and HIS is the C-terminal amino acid.
27. C. Has acidic and basic characteristics.
A is wrong because amino and carboxylic group takes part in peptide bond formation. B is wrong because only peptide Bond's rotation is restricted. But phi and psi bond helps in backbone orientation
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