Activation Energy
The amount of energy needed to start a chemical reaction
ADP
An organic compound that is composed of adenosine and two phosphate groups
Aerobic
Using oxygen
Anaerobic
Without oxygen
Atom
The smallest unit of an element, made from at least one proton ant one neutron in a nucleus that is surrounded by one of more shells of electrons
ATP
The energy molecule that is used by cells to perform cellular processes
Bond Energy
The measue of bond strenth in a chemical bond
Catalyst
A substance that increases the rate of a chemical reaction without itself being used up
Chemical Change
Occurs when a substance combines with another to form a new substance
Endothermic
A reactiont that absorbes energy
Exothermic
A reaction that releases energy
Molecule
A group of atoms bonded together, representing the smallest fundamental unot of a chemical compound that can take part in a chemical reaction
Photosynthesis
The process by which plants and some other organisms use sunlight to synthesize food from carbon dioxide and water
Product
The ending material in a chemical reaction
Reactant
Starting materials of a chemical reaction
Reaction Rate
The speed at which a chemical reaction proceeds
Respiration
A process in living organisms involving the production of ATP, typically with the intake of oxygen and the release of carbon dioxide