A
Control center, brain, controls all actions of the cell
Nucleus (Cells)
Powerhouse of the cell, turns glucose into usable energy
Mitochondria
Storage in a cell, stores water, waste, and nutrients
Vacuole
Controls what goes in and out of the cell
Cell Membrane
Jelly like substance in a cell that organelles are suspended in
Cytoplasm
The number in front of a chemical formula in a chemical equation; represents the number of molecules
Coefficient
Number written to the right and slightly below a chemical symbol in a chemical formula; represents the number of atoms of that element
Subscript
The representation of a chemical reaction using symbols and numbers
Chemical Equation
A one or two letter representation of an element; can be found on the periodic table
Chemical Symbol
Number of Protons and Neutrons
Atomic Mass
2 or more substances mixed together but NOT chemically bonded
Mixture
substances that are combined and changed during a chemical reaction; ingredients
Reactants
substance(s) resulting from a chemical reaction; what is produced
Products
Horizontal row of elements in the periodic table (7 total)
Period
Vertical column of elements in the periodic table
Group/Family
kingdom of organisms that have cells without a nucleus that are ancient bacteria
Found in extreme environments
Archaebacteria
kingdom of organisms that have cells without a nucleus that are everyday bacteria
Eubacteria
kingdom of single celled organisms that are either plant-like, animal-like, or fungus-like
Protista
Elements that are good conductors of electric current and heat; located on the left side of the periodic table
Metals
Elements that are poor conductors of heat and electric current; located on the right side of the periodic table
Nonmetals
Elements that have properties of both metals and nonmetals; located along both side of the zig zag on the periodic table
Metalloids
any substance that cannot be broken down into simpler substances. Identified by its symbol and its atomic number.
Element
A sample of matter, either a single element or a single compound, that has definite chemical and physical properties
Pure Substance
Levels of Organization (Smallest to largest)
Organelle, Cell, Tissue, Organ, Organ System, Organism
Law of Conservation of Mass
Matter cannot be created or destroyed, only rearranged. The reactants must match the products