1. Principles of Biochemistry
Welcome to class of
Principles of Biochemistry
Dr. Meera Kaur

2. What is Biochemistry? A scientific discipline
Explains life at the molecular level
Explains biological forms and functions in chemical terms
Forms basis for studying other fields like cell biology, genetics, medicine, nutrition, immunology etc.
Closely relates to other discipline like chemistry, physics, mathematics

3. Levels of organization in a living organism.

4. What are living organism made of ? How are they made ?
What is biomolecule?
What are living organism made of ?
How are they made ?

5. Biomolecules Living matters are made out of biomolecules
Biomolecules are made of lighter elements
They are mostly combined with covalent bonding
Biomolecules are compounds of carbon
Biomolecules have functional groups
Most biomolecules are asymmetric

6. Elements found in biological molecules

7. What are the major biomolecules?
Carbohydrates
Protein
Lipids
Nucleic acds

8. Form of life Prokaryotes (bacteria, archae) Unicellular No nucleus
Lack internal membrane systems
Incapable of carring complex reactions
Eukaryotes (animal, fungi)
Multicellular/ unicellular
Contain nucleus
Have membrane-bounded cellular units
Capable to perform cpmplex biological reactions (photosyntesis, aerobic metabolism etc.)

9. Representations of alanine

10. Representations of alanine

11. Structure of human endothelin

12. Illustration of entropy

13. How does evolution work?

14. Laboratory synthesis of biological molecules

15. Cyanobacteria

16. Prokaryotic cells

17. A eukaryotic cell

18. Evolutionary tree based on nucleotide sequences

19. Possible origin of eukaryotic cells