The primary structure of a polypeptide has

1. Interchain disulphide bonds

2. Peptide bonds

3. H-bonds

4. Glycosidic bonds

The formation of amide bond shows which type of reaction

1.Substitution reaction

2.Elimination reaction

3.Addition reaction

4.Rearrangement reaction

An amino acid can have ____ charge in solutions of  different pH.

1.positive

2.negative

3.no charge

4.All of these

In proteins, amino acids are linked by  a type of

1.Acetyl bond

2.Amide bond

3.Ester bond

4.Glycosidic bond

Where would you expect to find serine and alanine amino acids in a globular protein in aqueous solution?

(1) Serine would be in the interior, and alanine would be on the exterior of the globular protein.

(2) Alanine would be in the interior, and serine would be on the exterior of the globular protein.

(3) Both serine and alanine would be in the interior of the globular protein.

(4) Both serine and alanine would be on the exterior of the globular protein.