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Gen Cell 1

TermDefinition
Energy Sunlight is basic source of energy
Reductionism Reducing complex systems to simpler components
Emergent Properties Result from the arrangement and interaction of parts within a system
Negative Feedback End product slows down process
Positive Feedback End product speeds up process
Taxonomy Names and classifies species into groups of increasing breadth
Three Domains of Life Bacteria, Archaea, Eukarya
Bacteria and Archaea Prokaryotes-no nucleus
Eukarya Eukaryotes-has nucleus
Classifying Life Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Natural Selection Adaptation to organisms in their own environment
Experimental Variable Variable that changes
Control Group Does not change
Scientific Method Observe, Question, Hypothesis, Predict, Test Hypothesis
Deductive Reasoning General observations to form specific results
Hypothesis Tentative answer for well-framed question
Inductive Reasoning Specific observations to form general results
Element Substance that cannot be broken down
Compound Substance consisting of two or more elements
Essential Elements Organisms need an abundance; Nitrogen, Oxygen, Carbon, Hydrogen
Trace Elements Not needed in abundance, but still needed for survival
Subatomic Particles Protons-Positive Neutrons-Neutral Electrons-Negative
Atomic Number Sum of protons
Atomic Mass Sum of protons and neutrons
Daltons Unit of Measurement
Isotope Two of the same element have different atomic mass
Radioactive Isotope Isotope where the nucleus decays
Potential Energy Energy that matter possesses because of location and structure
Electron Shell Where electrons are found
Valence Shell Outermost Shell
Orbital 3D space where electrons can be found 90% of the time
Covalent Bond Two atoms sharing electrons
Ionic bond One atom take away a less electronegative atom's proton
Hydrogen Bond The noncovalent attraction between a hydrogen and electronegative atom
Van der Waals Interaction Weakest interaction that occurs when atoms and molecules are very close together
Electronegativity Draws electrons to atoms to form covalent bonds
Nonpolar Bond Atoms share electrons equally
Polar Bond Electrons are not shared equally
Anion Negatively charged
Cation Positively charged
Reactant Starts a reaction
Product What is made from a reaction
Chemical Equilibrium When the rate of reactions are the same
Cohesion Hydrogen bonds holding water together
Adhesion Clinging to one substance to another
Surface Tension How difficult it is to break the surface of a liquid
Kinetic Energy The energy of motion
Heat The sum of matters total kinetic energy
Temperature The average of matters kinetic energy
Calorie The amount of heat it takes to raise 1 gram of water by 1 degree Celcius
Specific Heat Amount of heat that must be absorbed or lost for 1 gram of water to change it's temp by 1 degree C
Solution Liquid that is a completely homogenous mixture of 2 or more substances
Solvent Dissolving agent
Solute Substance being dissolved
Aqueous solution Solution where water is the solvent
Hydrophillic Substance that is water loving
Hydrophobic Substance that repels water
Colloid Does not dissolve in liquid
Molecular Mass Sum of masses of all atoms in a molecule
Molarity Number of moles of solute per liter of solution
Avogadros Number Represents exact number of object
Ice in Water Ice floats on top of water
Acid Increases hydrogen ion concentration pH less than 7
Base Reduce hydrogen ion concentration pH more than 7
pH Scale Compresses the range of H+ and OH- concentrations by employing logarithms
Buffer Minimizes changes in concentration of hydrogen atoms
Properties of water Cohesive Behavior, Ability to moderate temperature, Expansion upon freezing, Versatility as a solvent
Properties of Life Order, Evolutionary Adaptation, Response to Environment, Reproduction, Growth and Development, Energy Processing, Regulation
Created by: lindzx92
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