1. Biology Do Now
Directions: Take out a sheet of notebook (Do Now sheet) and, then answer each question based on yesterday’s.
Explain each of the following properties of water: cohesion, adhesion, high specific heat, density.
Define: monomer, polymer, covalent bond, and ionic bond.

2. Biology Do Now Key
Explain each of the following properties of water: cohesion, adhesion, high specific heat, density.
Cohesion: water molecules attracted to other water molecules
Adhesion: water molecules attracted to other substances
High specific heat: absorbs a lot of heat before evaporating
Density: liquid water has a density of 1 g/mL; water is most dense (heavy) as a liquid at 4 degrees Celsius
Define: monomer, polymer, covalent bond, and ionic bond.
Monomer: a single subunit used to build polymers
Polymer: a large, complex molecule made up of monomers
Covalent bond: an attraction between 2 atoms formed from the sharing of electrons
Ionic bond: an attraction between to charged atoms (ions) formed from the transfer of electrons

3. Biology Homework – Due on Friday, 2/15/19
Define and provide an example for the following terms: Carbohydrate, monosaccharide, lipid, fatty acid, protein, amino acid, nucleic acid, nucleotide.
Complete Biological Molecules POGIL

4. Objective
Students will know the properties of water, how molecules combine and the structure of macromolecules by taking notes, completing a POGIL and creating a colorful poster/chart project.
Mastery Level: 70 pts. out of 100 pts. or better

5. Biomolecules (Updated)
Biomolecules (Updated)

6. THE CHEMISTRY OF LIFE
Organic chemistry – the study of all compounds that contain bonds between carbon atoms

7. The Macromolecules of life
Cells can make a variety of macromolecules (large polymers) from a relatively small set of monomers (building blocks).

8. CARBOHYDRATES Used by cells to store and release energy
Composed of C, H, and O
Monomer (building block) is a monosaccharide, or simple sugar: examples are glucose and fructose
A disaccharide is formed when two monosaccharides bond together; example sucrose = fructose + glucose

9. Carbs cont.
The largest carbohydrates are the starch, glycogen, cellulose, and chitin.
Starch – how plants store food they make
Glycogen – how animals store food reserves in the liver
Cellulose – structural material in plant cell walls; the fiber in the food you eat
Chitin – structural material in fungal cell walls; in the exoskeletons of arthropods

10. Lipids Commonly called fats and oils
Healthy
Unhealthy
Commonly called fats and oils
Are insoluble in water because the molecules are nonpolar
Used for energy storage, insulation, and protective coverings; they are a major component in cell membranes
Contain numerous C-H chains called fatty acids

11. Lipids cont.
Saturated fats (unhealthy) contain only single bonds in the C-H chains; are solid at room temperature
Unsaturated fats (healthy) contain some double bonds in the C-H chains; are liquid at room temperature

12. Functions of proteins:
Structural – hair, nails
Transport – hemoglobin
Movement – muscle fibers and cytoskeletal elements
Defense – antibodies
Regulation of cell functions – hormones and enzymes

13. Nucleic Acids DNA and RNA
Function – control cell activities by directing protein synthesis
Monomers are nucleotides which are made up of a nitrogenous base, a sugar, and a phosphate group
DNA – deoxyribonucleic acid is the master genetic code
RNA – ribonucleic acid functions to make copies of DNA

15. Macromolecule of the Year Project
Worth 100 points
Work in groups of 2-3 students
Must create a colorful and convincing chart about one macromolecule and why that molecule is the MOST ESSENTIAL (IMPORTANT) MACROMOLECULE.
Due: 2/15/19 (Tomorrow)

16. DNA replicating, or the making of a new copy