Proteins function {Ans: Structure, storage, defense, transport, and speeding up reactions Found in hair, muscles, feathers Common foods: meat, eggs, nuts}Newton's Second Law {Ans: Force equals mass times acceleration}Velocity {Ans: Speed in a given direction}Alkanes {Ans: a hydrocarbon containing only single covalent bonds}Genetics {Ans: passing of traits from parent to offspring}cell membrane {Ans: a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment}double-displacement reaction {Ans: the positive ion of one compound replaces the positive ion of the other to form two new compounds}net force {Ans: the vector sum of all forces acting on an object}Bacteria {Ans: (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission}Concentration formula {Ans: mass of solute/volume of solvent}ionic bond {Ans: Formed when one or more electrons are transferred from one atom to another}Pascal's Law {Ans: Law stating that a change in pressure at any point in an enclosed fluid is transmitted equally throughout the fluid.}structure of glucose {Ans: C6H12O6}density {Ans: mass/volume}Newton's First Law {Ans: An object at rest stays at rest