Homework

1
Homework

• Topic 1 Understand how life arose on the Earth
• Topic 2 Determine the general principles
  governing the organization of matter into living
  systems
• Some authors to cite
• Orgel, Eschenmoser, Wachtershauser, Cairns-Smith,
  Deamer, Dworkin, Schopf.

2
In the books

• Bennett
• Ch. 3 and Ch. 5
• Goldsmith
• Ch. 7 and Ch. 8

3
Pillars of Life
4
Program

• Genetic Blueprint-gtDNA/RNA like molecule
• Some set or plan by which a code for the
  construction of an organism is passed from one
  generation to the next.

5
Improvisation

• Mutation- The occurrence of defects and natural
  selection allows the population to adapt to
  different and challenging environments

6
Compartmentalization

• You have to keep your insides in and the outside
  out
• Formation of cell membranes/walls
• Amphiphilic molecules

7
Energy

• Some basic fuel
• Sun
• Food (glucose)
• Chemoautotrophs
• Chemolithotrophs
• etc.

8
Regeneration

• If you burn energy you must have a system to
  re-coup it
• New proteins, new DNA, etc.

9
Adaptability

• A behavior response to a malignant stimulus
• You put your hand in the fire, it hurts, you take
  it out,

10
Seclusion

• Biochemistry and the chemicals in the organism
  all work for specific ends without precluding
  each other.
• Many rxns occurs at the same time without
  precluding each other.

11
DNA
12
Tree of Life
rRNA
13
Endosymbiosis/Organelles
14
Origin of Life

• LUCA-Last Universal Common Ancestor
• Panspermia
• Miller-Urey Experiment
• RNA world Hypothesis and Rybozymes

• Life needs three things to get started
• Organic molecules
• Energy
• Aqueous medium (H20)

15
Panspermia
16
Miller-Urey Experiment
17
Clay Theory
18
(No Transcript)