BELL WORK :

1. BELL WORK: • What do disaccharides(such as sucrose) and polysaccharides (such as starch) have in common? • What type of biomolecule are disaccharides and polysaccharides?

2. Science Fact of the Day • Salt water is 4 times saltier than our blood. By drinking it, your kidneys would need to use up a large amount of water just to get rid of all that excess salt. This means that you would actually die of thirst from drinking seawater.

3. CO: I will understand the characteristics of proteins and compare proteins to the other biomolecules.LO: I will write notes and plan a lab with my lab group.

4. Functions: Structure: Controlling the rate of reactions (enzymes). Regulating cell processes (enzymes). Forming bones and muscles. Transporting substances into or out of cells. Helping to fight disease (antibodies). Function is determined by shape! • Peptide bonds connect the amino acids • Enough amino acids connected together will cause the protein to fold and create a new shape Elements: Good to know: • Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N) • The instructions to make proteins is stored in DNA Protein Monomer: Polymer: • Amino acid • Examples: Serine (Ser), Proline (Pro) • Protein (also called a polypeptide) • Examples: insulin, alcohol dehydrogenase • The R group changes.

5. Polymer picture larger (draw 3)

6. Home work video • http://youtu.be/myORDWVzNhc • “The Role of Enzymes” by VEA Australia - New Zealand

7. Design Your own Experiment • Record the data given by your teacher for the Alka-Seltzer reaction • Identify ONEvariable that you can change • Write a lab proposal for the variable • Get teacher approval before you leave • We’ll run your experiments tomorrow! 