Protein and Water soluble vitamins PDF

1
Running Head: PROTEIN AND WATER SOLUBLE VITAMINS
Proteins and water soluble vitamins
Student’s Name
Professor’s name
Name of the institution

2
PROTEIN AND WATER SOLUBLE VITAMINS
Part B
Question 1: Protein structure
Protein structure is determined by low energy chemical bond between atoms in amino side
chains and polypeptide backbone, amino acid sequence and local. These structures include:
primary structure, secondary structure, tertiary and quaternary structures. Primary is made of
sequences of amino acids; secondary made of interaction between polypeptide chains, tertiary is
made of a three dimensional folding driven by interactions between R group and quaternary
made of arrangements and orientation of subunits (Gutteridge & Thornton, 2015).
Functions of proteins
Gutteridge & Thornton (2015) outline the following functions of proteins;
They defend the body from foreign substances (antigens).they bind themselves to the
antigens like viruses and bacteria .they immobilizes the antigens so that they are
destroyed by white blood cells.
They carry out chemical reactions in a cell. They speed up the rate of reaction hence
referred as a catalyst i.e. lactase
help in the coordination of specific body activities hence referred as messenger proteins
i.e. insulin
Storage and transportation of molecules
Repair and maintenance: as they are referred as body building
