| A | B |
|---|
| Matter | takes up space & has mass |
| Elements | Cannot be made or broken down |
| Atom | smallest matter unit in chem rxns |
| Proton | positive charge in nucleus |
| Electron | negative charge in shells |
| Neutron | no charge in nucleus |
| Atomic Number | number of protons in element |
| Atomic Weight | number of protons + neutrons in element |
| Isotopes | same element but has different # of neutrons |
| Radioisotopes | radioactive forms of an element |
| Molecules | atoms chemically bound together |
| Compounds | molecules with two different elements |
| Ions | atoms with + or - charge |
| Ionic Bond | When two opposite Ions attract |
| Covalent Bond | shared electrons to make a chemical bond |
| Hydrophilic | loves to interact with water |
| Hydrophobic | avoids water |
| Cohesive | clings together or sitcks |
| Polar molecule | has + and - charged regions |
| Acid | pH < 7, high H+ ions |
| Base | pH > 7, low H+ ions |
| Neutral | pH = 7, pure water |
| Organic | contains both C & H atoms |
| Inorganic | doesn't contain both C & H |
| Monomer | single unit of large molecule |
| Polymer | large molecule made of monomers |
| Carbohydrate | types of sugar |
| Starch | A type of carbohydrate polymer in plants |
| Glycogen | A type of carbohydrate polymer in animals |
| Cellulose | A type of carbohydrate polymer for plant support |
| Lipids | hydrophobic, many functions, known as fat |
| Phospholipids | Make up cell membrane |
| Steroids | A type of lipid |
| Proteins | make up enzymes |
| Amino Acid | make up proteins |
| Peptide Bond | link amino acids to make proteins |
| Denaturation | protein changes shape or rips it apart |
| Enzyme | protein speeds chem reactions |
| Nucleic Acids | Make up DNA or RNA |
| DNA | contains all genetic information of the organism |
| RNA | Works with DNA to make Proteins |
| ATP | energy molecule used in cells |
