campbl26 - Early Earth and the Origin of Life We will...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Early Earth and the Origin of Life We will concentrate in this lecture on two things: 1. An overview of the logic of the origin of life What is the history of life’s origins? How is it possible that life could form? Why doesn’t life arise de novo today? 2. An overview of the diversity of life Problems with the the Five-Kingdom system Attempts at dealing with these problems via an n -Kingdom system of organismal classification Carl Woese and the Universal tree
Background image of page 2
Origin of Life (overview) Singularity: Pre-Big Bang Inflation: Energization of Big Bang Universal expansion: Energy provided by Inflation Sub-atomic particles: Energy Mass conversion as universe cooled Atoms: mostly Hydrogen Gas-cloud inhomogeneities: provided gravity wells Stars: gas-cloud gravitational collapse Super novae: Metals: Atoms other than H and He Molecules: More complex than H 2 Accretion: Formation of planets Planets: gravity wells (like stars but smaller)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Synthesis of Lighter Elements
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/03/2011 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

Page1 / 39

campbl26 - Early Earth and the Origin of Life We will...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online