1. Recall
Molecule: when two or more atoms join together
(ex O2)
Compounds: Two or more different elements chemically combined to form a new substance
(ex. NaCl – sodium chloride, table salt)
Some of these are small, just a few atoms, some molecules are very large.

2. Biomolecule examples

3. Folic acid

5. Often contain minerals we need

8. Some molecules are broken down, some stay as is

9. Caffeine

11. Other Chemicals and brain
Alcohol

15. Biomolecules All of these are examples of biomolecules
Molecules found in living organisms
Four main categories
Carbohydrates
Lipids
Proteins
Nucleic acids

16. Biomolecules
They are often called macromolecules because of their large size.
They are also called polymers because they are made from identical or similar building blocks strung together (monomers).

17. Biomolecules
Dehydration reaction builds long polymers out of multiple monomers
Hydrolysis breaks a polymer into the monomers

18. Carbohydrates Sugar molecules (saccharide)
Monosaccharides are single sugars that can be combined to form disaccharides and polysaccharides

19. Lipids are water insoluble (hydrophobic, or water-fearing) compounds
are important in long-term energy storage
contain twice as much energy as a polysaccharide

20. Proteins
Proteins are
involved in nearly every dynamic function in your body
very diverse, over 10,000 different proteins, each with a specific structure and function, in the human body
Proteins are composed of differing arrangements of a common set of just 20 amino acid monomers

21. Nucleic Acids DNA and RNA are examples
Deoxyribonucleic acid
Ribonucleic acid
Provide the instructions for the cell to make proteins so the cell can function.

22. Snack Foods HW
Find the label of a snack food, do some research on each of the ingredients
Leave the back empty for now