BIOL 1108 1nd Edition Lecture 2 Outline of Last Lecture I. Learning JournalsA. What did I learn today in lecture?B. One sentence explain whyC. Every 2 weeksD. Use journal guideII. In the NewsA. Two peer reviewed articlesB. Write down two questions/points in totalC. CBE formatting Outline of Current Lecture I. AbiogenesisA. Definition of abiogenesis- the study of how life on Earth might have emerged from non-lifeB. Earth formed about 4.4 billion years ago- Mantle is heated by radioactive decay in Earth’s core- Continental drift effects climateC. Earth’s Atmosphere- H2O vapor (80%), CO2 (10%), no free oxygenII. For Life to Form SpontaneouslyA.Formation of Organic MoleculesB.Stanley Miller ExperimentC.Deep Sea VentsCurrent LectureAbiogenesis: is the study of how life on Earth might have come to be from nonliving thingsI. History of Life on EarthA. Basics- 4.4 billion years old- Convection currents in fluid cause plates to move= continental drift- Moving plates cause climate and sea level changes, biological evolution, and biogeographyB. AtmosphereThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Developed from outgassing, in which gases are released from molten rock in the mantle of the planet by volcanic activity- Comets and meteorites bring gases - Today’s atmosphere differs from the past: much less H2O vapor and more O2- Overtime, the water vapor condensed to make oceans and CO2 dissolved in the oceans. II. Spontaneously Forming LifeA. Primitive Earth’s chemicals had to form organic molecules- Molecules had to combine to form primitive cells (protocells)- Protocells had to evolve into true cellsB. Stanley Miller Experiment- Fairly complex organic molecules will form spontaneously under conditions that existed on the primitive earth- Energy input from the sun, volcanoes, and lightning- Miller experiments leas to the formation of amino acids under lab conditions simulating a primitive earth atmosphereC. Deep Sea vents- Demonstrated complex organic compounds such as methane, ethane, and butane- Can be produced via inorganic