Question

1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f. ester 4. All amino acids contain the following substituents on the alpha carbon except: a. Hydrogen b. Side chain c. Carbonyl carbon d. Oxygen e. Amine 5. True/False The reactivity of peptides is largely driven by H-bonding among the amino acids

Answer 1

1.there are 22 amino acids that are naturally occurring. It was called as aminosaure according to Greek letter nomenclature.

2. Alpha Carbon is the one which is connected to both carboxylic acid and amine functional group. The given statement is false.

3. Amino acids contains amine and carboxylic acid functional group. Option a and d is right

4. Alpha Carbon is attached to amine group, carboxylic acid group, substituents and hydrogen.. option d is right. It doesn't show oxygen substitution.

5.the strength of peptide bond determines the reactivity of the peptide. The statement is true.