Question 1
A partial hydrolysis of a protein yielded the following fragments: Ser-Gly, Gly-Ala, Gly-Ala-Val, Val-Leu, Ala-Val. What is the sequence of amino acids in the polypeptide?
◦ Val-Ala-Gly-Ser-Leu
◦ Gly-Leu-Ser-Ala-Val
◦ Leu-Ala-Gly-Val-Ser
◦ Ser-Gly-Ala-Val-Leu
Question 2
Hemoglobin is a protein molecule which contains 4 iron atoms. If the mass percent of iron is 0.342%, what is the molar mass of hemoglobin?
◦ 16,300 g/mol
◦ 65,300 g/mol
◦ 1020 g/mol
◦ none of these