Explain the structure and function of proteins in the body.

Structure of Proteins:

Made of amino acids linked by peptide bonds

Form polypeptides, which fold into 3D structures

Protein structure levels:

1. Primary structure – Amino acid sequence

2. Secondary structure – Helices and sheets

3. Tertiary structure – 3D folding

4. Quaternary structure – Multiple polypeptide chains

Functions of Proteins:

Enzymes (speed up reactions, e.g., amylase)

Hormones (control body functions, e.g., insulin)

Transport (carry oxygen, e.g., hemoglobin)

Immunity (fight infections, e.g., antibodies)

Related Questions:

  1. Distinguish between mono-, di-, and tri-saccharides. Give examples.
  2. Describe bonding in a protein molecule.
  3. Describe the different types of carbohydrates with examples. 
  4. What are nucleic acids? Explain their types, structure, and function.
  5. BIOCHEMISTRY
  6. Decide whether sucrose is a disaccharide or monosaccharide. Give a reason.
  7. What is a dextrose sugar?
  8. Write the formula of an amino acid and identify functional groups in it.
  9. Which compounds are included in lipids?
  10. Explain sources and uses of lipids.
  11. What are polysaccharides? Give examples.
  12. What is the function of enzymes in the body?
  13. How do vitamins differ from minerals?
  14. CHEMICAL EQUILIBRIUM
  15. ACIDS, BASES AND SALTS
  16. ENVIRONMENTAL CHEMISTRY-AIR
  17. ENVIRONMENTAL CHEMISTRY-WATER
  18. ORGANIC CHEMISTRY
  19. EMPIRRICAL DATA COLLECTION AND ANALYSIS
  20. QUALITATIVE ANALYSIS