A review of all of the Campbell 7th Edition terms for the new 2013 AP Biology Curriculum
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| 7394487015 | polar | Molecule with partial charges. Mixes with water. |  | 0 |
| 7394487016 | nonpolar | No partial charges. Do not mix with water. |  | 1 |
| 7394487017 | electronegativity | Attraction of an atom for electrons in a covalent bond. |  | 2 |
| 7394487018 | cohesion | Water molecules sticking to each other. |  | 3 |
| 7394487019 | adhesion | Water molecules sticking to other surfaces. |  | 4 |
| 7394487020 | solute | Something dissolved in a solution. |  | 5 |
| 7394487021 | solvent | Dissolving agent of a solution. |  | 6 |
| 7394487022 | capillary action | A process powered by adhesion that causes water molecules to move upward through a narrow tube such as the stem of a plant. |  | 7 |
| 7394487023 | Heat capacity/specific heat | the amount of thermal energy that must be absorbed or lost to change the temperature of a substance or object by 1oC |  | 8 |
| 7394487024 | surface tension | An inward force that tends to minimize the surface area of a liquid; it causes the surface to behave as if it were a thin skin |  | 9 |
| 7394487025 | heat of vaporization | The amount of energy required for the liquid at its boiling point to become a gas |  | 10 |
| 7394487026 | heat of fusion | the amount of energy required to change a substance from the solid phase to the liquid phase at its melting point |  | 11 |
| 7394487028 | hydrophobic | insoluble in water | 12 | |
| 7394487029 | hydrophilic | having a tendency to mix with, dissolve in, or be wetted by water. | 13 | |
| 7394487030 | covalent bonds | Bonds created by sharing electrons with other atoms. |  | 14 |
| 7394487031 | ionic bonds | Bonds between atoms that form by transferring electrons |  | 15 |
| 7394487032 | hydrogen bonds | Very weak bonds; occurs when a hydrogen atom in one molecule is attracted to the electrostatic atom in another molecule |  | 16 |
| 7394487033 | polar covalent bond | A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative and the other atom slightly positive. |  | 17 |
| 7394487034 | ions | Charged atoms | 18 | |
| 7394487035 | cations | Positively charged ions | 19 | |
| 7394487036 | anions | Negatively charged ions | 20 | |
| 7394487037 | acid | A substance that increases the hydrogen ion concentration of a solution. | 21 | |
| 7394487038 | base | A substance that decreases the hydrogen ion concentration in a solution. | 22 | |
| 7394487040 | pH scale | measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14. O is most acidic + and 14 is most basic + or alkaline. |  | 23 |
| 7394487041 | buffer | A solution that minimizes changes in pH when extraneous acids or bases are added to the solution. |  | 24 |
| 7394487042 | transpiration | The process by which water is lost through a plant's leaves |  | 25 |
| 7394487043 | evaporative cooling | The process in which the surface of an object becomes cooler during evaporation, owing to a change of the molecules with the greatest kinetic energy from the liquid to the gaseous state. |  | 26 |
| 7394487044 | temperature | A measure of the average energy of motion of the particles of a substance. | 27 | |
| 7394487054 | osmosis | The movement of water through a selectively permeable membrane, from a high to low concentration | 28 | |
| 7394487055 | diffusion | The movement of atoms or molecules from an area of higher concentration to an area of lower concentration | 29 | |
| 7394487056 | root pressure | Osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves. Occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day | 30 | |
| 7394487057 | negative pressure potential | tension, as a result of transpiration, determines amount of potential energy in a system | 31 |
