1. INTRODUCTION ~ PART 1 ~ Biomolecules

2. Chemistry of Life 1. Life requires about ____________naturally occurring chemical elements. A. _____________________________, and _________________ make up 96% of living matter. B. _______________________, calcium and potassium make up most of the remaining 4%.

3. Chemical Bonds 1. Atoms combine by chemical bonding ________________________________ A. Atoms react with each other by either sharing or transferring ___________. B. These interactions usually result in atoms staying close together, held by ________________________________

4. 1. _______________: occurs when the outer electrons are ____________ ___ two atoms. 2. _______________: a ___________ between an atom of ___________________ 3. ______________: occurs when the outer electrons are _____________creating + and – ions. Chemical Bonds

5. 1. ____________= substances that are composed of ______________ combined in a fixed ratio 2. Types of compounds: A. Inorganic compounds B. __________________ Compounds

6. 1. __________: does _________________ A. Example: __________ - H 2 O 2. ___________: Compounds that contain ____________. A. Example: ________ –C 6 H 12 O 6

7. 1. Carbon can form ____________ with as many as 4 other atoms (elements). 2. Usually with ___________ a. Carbon b. ____________ c. Oxygen d. ____________ 3. Example: CH 4 (methane) Carbon (C)

8. Biomolecules 1. Cells are composed of organic compounds called ________________ 2. These biomolecules include: a. ____________ b. ____________ c. proteins d. nucleic acids 3. These four types of biomolecules are know as _________________ 4. These substances are used by your cells and often obtained through _____________

9. 1. ____________________ - Large molecules. Also known as polymers. 2. __________ - ______________ made of many subunits (monomers) 3. ______________ - _________________________ that make up a polymer (macromolecule). Macromolecules

10. Dehydration Synthesis 1. When ____________(putting monomers together) the process is known as dehydration synthesis. A. an H and OH are given off to form H 2 O. B. the result is the ____________________ of a new polymer.

11. Hydrolysis 1. When ____________, __________the process is known as hydrolysis. A. water is added to the split the molecules. 3. This results in breaking down a polymer into ________________