BONDS IN POLYMERS

Which of the following bond(s) do(es) NOT exist in a secondary structure?

• Peptide bond

• Hydrogen bond

• Disulphide bond

• Ionic bond

The polypeptide in the diagram consists of;

• 3 amino acids and 3 peptide bonds

• 3 amino acids and 2 peptide bonds

• 4 amino acids and 2 phosphodiester bonds

• 3 amino acids and 2 phosphodiester bonds

The diagram shows the structure of collagen. Based on the diagram, what is the structural level of collagen?

• Primary

• Secondary

• Tertiary

• Quartenary

During the formation of the peptide bond which of the following takes place?

• Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid

• Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid

• Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid

• Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid

Which of the following bond(s) can be found in a tertiary structure?

• hydrogen bond

• disulphide bridge

• hydrophobic interaction

• all of the above

Haemoglobin is a quartenary protein because;

• It has more than one peptide bonds

• Its shape is globular

• It consists of more than one polypeptide chains

• It has iron in each heme group

The bond between two adjacent monomer in a polysaccharide is ________________

The bond present in amylose is ______________________

The bonds presents in cellulose are ______ and _________ bond

The bonds linking fatty acids to glycerol in triglycerides are called

• Peptide bonds
• Glycosidic bonds
• Ester bonds