1. H APPY M ONDAY B UFFS !! Bellwork: Please turn in your Meal Breakdown sheets and posters to table 7 marked with your class period. On the sheet of paper you picked up: Title: Quiz 2 Name Period Date Number it 1-10

2. S CIENCE F ACT OF THE D AY : I F YOU YELLED FOR 8 YEARS, 7 MONTHS, AND 6 DAYS, YOU WOULD HAVE PRODUCED ENOUGH SOUND ENERGY TO HEAT UP ONE CUP OF COFFEE.

3. B IOMOLECULES ( A QUICK RECAP ) BIO = LIFE MOLECULE = ATOMS BONDED TOGETHER 4 major biomolecules: 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic acids (we will talk about this one later) Biomolecules are molecules that are essential for life We find biomolecules in our FOOD !

4. B IOCHEMISTRY : T HE C HEMISTRY OF L IFE Matter: anything that takes up space Atom: basic unit of matter, building block of a molecule Molecule: two or more different atoms bonded together

5. B ONDS, BONDS, BONDS ! Molecules are different atoms bonded together. The bond stores energy. When that bond is broken, energy is released.

6. C HEMICAL R EACTIONS Chemical reactions are how ATOMS bond together and break apart. When a chemical reaction breaks a bond, energy is release in the form of heat.

7. P ARTS OF A C HEMICAL R EACTION Reactants : what goes INTO the chemical reaction, left side of arrow Products : what is produced from the reaction, right side of arrow Arrow: “ yields ”, makes Chemical Reactions in a Cake

8. M ONOMER Mono = one Monomers are small molecular units that can be combined to make larger units. Monomers are the subunits of polymers

9. P OLYMERS Poly = many Polymer = a large molecule made by bonding smaller molecular units (monomers) together Monomer + monomer + monomer +…= polymer What is the monomer in the above polymers pictured?

10. E XAMPLES OF BIOLOGICAL POLYMERS INCLUDE : Proteins, Complex Carbohydrates, Lipids, Nucleic Acids (DNA)

11. Dehydration synthesis = a process through which polymers are formed from monomers through the removal of H 2 O.

12. Hydro=water Lysis=cut Hydrolysis = the process of breaking down polymers into monomers by the addition of H 2 O. Hint: Think red rover

13. G LOOP A CTIVITY

14. D IRECTIONS FOR MAKING “ GLOOP ” 1. In your plastic baggie, add glue up to the baggie. 2. Add 5 ml of water to the glue. 3. Add 2-4 drops of food coloring to the glue and knead together with your hands. 4. Add 8 mL of borax solution to the baggie, MAKE SURE THE BAG IS CLOSED, and mix thoroughly.

15. Gloop Lab Report: Copy what is in bold and answer the questions: 1. When we added borax, what process was occurring: dehydration synthesis or hydrolysis? Describe the glue after borax was added. 2.Describe how are monomers and polymers related. 3. Summarize what happened during the Gloop Lab in 30 words. You must use the words: polymer, hydrolysis, dehydration synthesis

16. R ECAP How does your body break down food? Connect what you’ve learned today with other biology topics.