Proteins

Question 1

What is the monomer of proteins?

Answer 1

Amino acids.

Question 2

Name the types of bonds involved in protein structure.

Answer 2

Peptide bonds, hydrogen bonds, ionic bonds, disulfide bonds, and hydrophobic interactions.

Question 3

Describe the four levels of protein structure

Answer 3

Primary: Sequence of amino acids (peptide bonds).

Secondary: Folding into alpha helices or beta sheets (hydrogen bonds)

Tertiary: 3D folding due to R-group interactions.

Quaternary: Combination of two or more polypeptides.

Question 4

What is the difference between globular and fibrous proteins?

Answer 4

Globular: Spherical, water-soluble, metabolic functions (e.g., enzymes, haemoglobin).

Fibrous: Long, insoluble, structural functions (e.g., collagen).