title: proteins the presentation is about proteins and its building block its types and how amino acid are important? how they function and proteins are very crucial because all of our body is made up of proteins.

1. PROTEINS
Aniqa atta
BS: Renal dialysis technology
Mphil: Molecular biology and genetics

2. What are proteins?
• Proteins are large size molecules (macromolecules)
• Polymers of structural units called amino acids
• Swedish chemist Jöns Jacob Berzelius, who in 1838 coined the
term protein, a word derived from the Greek prōteios, meaning
“holding first place
• ” Proteins are species-specific
• Organ-specific
• Within a single organism, muscle proteins differ from those of
the brain and liver

3. Amino acids
• Building blocks of proteins are amino acids,
• Small organic molecules that consist of an alpha (central) carbon
atom linked to an amino group, a carboxyl group, a hydrogen atom,
and a variable component called a side chain
• Multiple amino acids are linked together by peptide bonds, thereby
forming a long chain
• Peptide bonds are formed by a biochemical reaction that extracts a
water molecule as it joins the amino group of one amino acid to the
carboxyl group of a neighboring amino acid

4. 20 types of amino acids

7. Functions of amino acids

9. Structure of proteins