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o When several amino acids are connected together, head-to-tail, the resulting m

ID: 1040389 • Letter: O

Question

o When several amino acids are connected together, head-to-tail, the resulting molecule is called a(n) molecule is called a(n) A) enzyme, polypeptide B) protein, polypeptide C) polypeptide, protein D) polypeptide, enzyme E) nucleic acid, enzyme When more than 50 amino acids are connected together, the Use the following to answer questions 11-14 Refer to the following molecule to answer the question(s) below. H2N-CHC-N CHC-N-CHC-OH OH CH3 11 This is a(n): A) amino acid. B) dipeptide C) tripeptide D) polypeptide. E) protein. 12 The boxed structure is a(n): A) B) C) D) E) peptide bond. ionic bond. nonpolar covalent bond. hydrogen bond. chiral carbon. 13 Hydrolysis of the peptide bonds in this molecule would result in A) no reaction B) a single amino acid C) two amino acids D) three amino acids E) four amino acids Which of the following is the proper amino acid chain designator of this molecule? I. val-ser-ala II. ser-ala-val III. ala-ser-val A) All of these represent the same molecule. B) I and III C) I only D) II only E) III only 14

Explanation / Answer

10) polypeptide , protein

11)tripeptide as there are three amino acid bonded by peptide bond (CO-NH) bond

12) peptide bond which is formed between the CooH of one amino acid and NH2 of another amino acid.

13) three amino acid

14) ala - serine - valine ( III only)

15) amide ( CO-NH) is formed which is an amide