Biology 1305 chapter 1-7 Questions & Answers

Evolution - ANSWERSChange over time Cell - ANSWERSsmallest unit of life genetic information - ANSWERSBasis of all life Themes of Biology - ANSWERSevolution, information, energy and matter, interactions, organization Properties of Life - ANSWERSorder, adaptation, regulation, growth and development, response to the environment, reproduction systems biology - ANSWERSAnalyzing interactions among parts of a system Reductionism - ANSWERSreducing complex systems to simple components Prokaryote - ANSWERSunicellular, has no nucleus Eukaryotic - ANSWERSHas nucleus DNA - ANSWERSA, T, C, G RNA - ANSWERSA, U, C, G Genome - ANSWERSAll genetic info in an organism genotics - ANSWERSStudy of gene sets Proteomics - ANSWERSStudy of protein sets Producers - ANSWERSphotosynthetic organisms Consumers - ANSWERSFeeds on other organisms feedback regulation - ANSWERSregulation of a process by the output or product negative feedback - ANSWERSReduction of stimuli posative feedback - ANSWERSAcceleration of stimuli Domains of life - ANSWERSEukarya, Archaea, Bacteria Eukarya - ANSWERSplants, animals, fungi, protists Archea - ANSWERSSingle cell, extreme environments Bacteria - ANSWERSsingle cell microorganisms natural selection - ANSWERSAdaptation to environment Element - ANSWERSPure Compound - ANSWERSCombined elements essential elements - ANSWERScarbon, hydrogen, oxygen, nitrogen Atom - ANSWERSSmallest unit of matter subatomic particles - ANSWERSproton, neutron, electron atomic nucleus - ANSWERSProtons and neutrons packed here Dalton - ANSWERSMeasurement for subatomic particles Isotopes - ANSWERSMore neutrons than protons radioactive isotope - ANSWERSnucleus decays spontaneously Half life - ANSWERSTime for half of isotope to decay radiometric dating - ANSWERSCalculate half lives lived potential energy - ANSWERSstored energy valence electrons - ANSWERSoutermost electrons Orbital - ANSWERSElectron is found here 90% of the time covalent bond - ANSWERSSharing of valence electrons Single bond - ANSWERSA pair of shared electrons double bond - ANSWERS2 pairs of shared electrons Valence - ANSWERSbonding capacity Electro negativity - ANSWERSAttraction of atom to electrons non polar covalent bond - ANSWERSelectrons shared equally polar covalent bond - ANSWERSunequal sharing of electrons Ions - ANSWERSCharged atoms Ionic bond - ANSWERSCations and anions attract ionic compounds - ANSWERSSalts hydrogen bond - ANSWERSnon covalent attraction between a hydrogen and electronegative atom chemical equilibrium - ANSWERSReactions offset eachother exactly products - ANSWERSresulting materials Reactants - ANSWERSstarting materials Cohesion - ANSWERShydrogen bonds hold water together surface tension - ANSWERSDifficulty to stretch or break surface of a liquid Adhesion - ANSWERSClinging of substance to water kinetic energy - ANSWERSenergy in motion thermal energy - ANSWERSKinetic energy with random molecule movement Temperature - ANSWERSaverage kinetic energy Calorie - ANSWERSHeat to raise 1g of water by 1c specific heat - ANSWERSHow well substance resists temperature change Heat of vaporization - ANSWERSAmount of heat to convert 1g liquid to gas Evaporative cooling - ANSWERSAs a liquid evaporates surface cools Solution - ANSWERShomogeneous mixture Solvent - ANSWERSDissolving agent Solute - ANSWERSdissolved substance