1. Introduction to Biochemistry
Chemistry and Living Things

2. Large molecules support cell functions
In living things, there are four main types of large molecules:
Carbohydrates, lipids, proteins, nucleic acids
Made of smaller repeating units
All contain carbon atoms.

3. Each macromolecule is a polymer made of unique monomers

4. Carbohydrates Provide the cell with energy
Sugars bonded together into larger carbohydrate molecules
Inside cells, the sugar molecules are broken down. This releases energy.

5. Lipids Fats, oils, and waxes Cannot mix with water Used by cells for:
energy
Support and structure
Cellular membrane: lipid bilayer

6. Proteins Amino acids join together into longer chains
Order of amino acids that determines the function of the protein
Your body gets amino acids from proteins in food.
Enzymes
Control chemical reactions

7. Nucleic Acids
2 Types
DNA
RNA
Hold instructions for maintenance, growth, and reproduction
Made of smaller units called nucleotides

8. Macromolecule Stations
In the groups you are sitting in, decide which individual will collect information about which molecule (there are only four, so two people might be doing the same one).
Once decided, those individuals will go to their respective macromolecule station and fill in the chart.
Tomorrow, the individuals will report back to their group with the information they collected.

10. Macromolecule Stations
Today you will be reporting back to your groups the information you collected yesterday. Be sure you get every piece of information that you can.

11. DO NOW Take out water lab from yesterday.
Open your notebook ready to take notes.
Reminders:
Extra Credit Due Thursday
Water Lab due Friday

12. Two-thirds of every cell is water
All of the chemical reactions inside the cell take place in water.
A water molecule consists of two atoms of hydrogen bonded to one atom of oxygen (H2O).
Water molecule has a slight positive charge near the hydrogen atoms and a slight negative charge near the oxygen atoms.

13. Water is polar

14. Living things are made mostly of….

15. Water is the Universal Solvent
Many substances dissolve in water, but not all
Lipids, like oil

16. Most lipids do not dissolve in water
Cell membranes are made up of lipids
Two parts:
Water-loving head
Water-hating tails