Biochemistry studies the processes of living things at the molecular level. It examines the four main classes of molecules that make up living organisms: carbohydrates, lipids, proteins, and nucleic acids. Friedrich Wöhler's synthesis of urea in 1828 demonstrated that organic compounds could be synthesized in a laboratory, challenging the traditional view that vital forces were necessary for the production of organic substances. Monomers like monosaccharides, glycerol and fatty acids, nucleotides, and amino acids link together to form biological polymers including carbohydrates, lipids, DNA and RNA, and proteins.

1. Biochemistry
Moisés Sánchez Gómez & Javier Hernandez Puchot

2. What it studies?
It studies the processes of the living things
All the sciences that are related to life are linked to biochemistry

3. It once was generally believed that life and its materials had some
essential property or substance
Many years ago, the scientist thought that living things could only
produce certain substances.

4. Friedrich Wöhler
Friedrich Wöhler in 1828, he synthesized the urea and published a book
where he had the evidence that organic compounds could be
synthesized.

5. QUICK QUESTION!!
• Who was Friedrich Wöhler?

6. Main classes of molecules
• carbohydrates
• lipids
• Proteins
• nucleic acids

7. Monomers and polymers
Monomers are microscopic molecules that they link to make larger
chains named polymers
The monomers when they are linked they can synthesis biological
polymers.
Monomers make different chains, depending on the function they are
needed

8. Examples of monomers
• monosaccharides
• glycerol and fatty acids
• nucleotides
• amino acids

9. QUICK QUESTION!!!
• Name the main clases of molecules. (4)

10. Monosaccharides
Monosaccharides link to make carbohydrates and carbohydrates are
used to provide energy to a organism.

11. Glycerol and fatty acids
Glycerol and fatty acids link to make lipids. Lipids are use as energy
providers and in cell membranes
Some lipids are bad, others are good

12. Nucleotides
Nucleotides link to make DNA and RNA. The DNA gives mthe
instruction of how to make the poby and its functions, the RNA is for
making copies of DNA.

13. Quick QUESTION!!!
• Does Glycerol and fatty acids link to make Proteins? (true or false)

14. Aminoacids
• Aminoacids are organic compounds made up of amine which is (-
NH2) and carboxylic acid (-COOH).
• The main elements of an aminoacid are H, C, O and N.

15. Carbohydrates
• A carbohydrates is a molecule that contains H, O and C.
• And is a synonym of a saccharide.

16. Lipids
• A lipid is an organic compound that their solubility is in organic
solvents (like acetone, chloroform, etc) and also in wáter.

17. QUICK QUESTION!!!
• What is BIO CHEMISTRY?

18. Proteins
• They are molecules or “macromolecules” that consist in a chain of
aminoacid residues.
• They function in the metabolic reactions, replicating DNA, etc.

19. Bibliography
• “Biochemistry” https://en.wikipedia.org/ Wikimedia Foundation 18/06/15
• Gauthier, Nicholas “Monomers: Types & Examples” http://study.com/ BBB
18/06/15
• “Nucleotide” http://www.ncbi.nlm.nih.gov/ USA.gov 18/06/15
• “Aminoacids” https://en.wikipedia.org/ Wikimedia Foundation 20/06/15
• “Carbohydrates” https://en.wikipedia.org/ Wikimedia Foundation
20/06/15
• “Lipids” https://2chemistry.msu.edu / William Resch
20/06/15
“proteins” https://en.wikipedia.org/ Wikimedia Foundation
20/06/15