1. Do Now 4/19
Missed
Grade
100 1 86 2 71 3 57 4 43 5 29 6 14 7
Take out your practice EOC questions and Review
We will grade the questions soon

2. Biolomolecules, Enzymes & Viruses

3. Chemistry of Life-BioChemistry
Organic Molecule:
Contains which of the following:
C, H, O, N, P
Made up of:
Function
Examples
Carbohydrates
C, H, O
Sugars & starches
Main source of energy for living things
Structural support for plants
Glucose
Fructose
Glycogen
Lipids
Fatty acid & glycerol
Store energy for living things
Compose bi-layer in all cell membranes
Leaves translucent spots on paper
Steroids = chemical messengers
Fats
Oils
Waxes
Proteins
C, H, O, N
Amino Acids
Regulate cell processes.
Form bones & muscle.
Transport substances in & out of cells.
Fight off disease. (Immune System)
Enzymes
Nucleic Acids
Nucleotides
Stores genetic material
DNA
RNA

4. ENZYMES What is the function of an enzyme?
How do temperature and pH affect enzymes?
What is pH?
Acids have pH BELOW 7 
Bases have pH ABOVE 7
Neutral solutions have pH of 7
Acts as a biological catalyst, speeds up the rate of a chemical reaction
 Most enzymes work best in certain conditions. A change in those conditions will cause denaturing. Too high or too low temps or pH will cause the enzyme to no longer work properly

5. ENZYMES A. substrate/reactant B. Enzyme C. enzyme-substrate complex
D. enzyme (unchanged)
E. Product
Denature: When an enzyme gets too hot or in too extreme a pH and stops working correctly

6. Viruses- Page 12 Viruses Bacteria Non living DNA enclosed in a capsid
Much smaller
Must use a host to reproduce
Many are preventable with vaccines
Living
Can reproduce-binary fission
DNA in an area called the nucleoid
Treatable with antibiotics

7. Viral Reproduction Lytic Infection Lysogenic Infection
Virus attaches to and enters host cell.
Viral DNA takes over the host cell’s DNA
Causes cell to make new viruses
Cell will Lyse (burst) releasing all the newly formed viruses
Causes person to have symptoms of illness
EX: Cold, Flu
Virus attaches to and enters host cell
Viral DNA joins the cell’s DNA
Cell continues to function normally
When cell reproduces so does the viral DNA (that’s how it spreads)
No symptoms of illness
Upon a trigger the infected cells will enter the Lytic cycle
Ex: HIV, Herpes