Chapter 25 Slides Sections 1-3
Chapter 25 Slides Sections 1-3 Chapter 25 Slides Sections 1-3
Key Events in Origin of Life • Origin of Cells (Protocells) lipid bubbles separate inside from outside metabolism & reproduction • Origin of Genetics RNA is likely first genetic material multiple functions: encodes information (selfreplicating), enzyme, regulatory molecule, transport molecule (tRNA, mRNA) • makes inheritance possible • makes natural selection & evolution possible • Origin of Eukaryotes endosymbiosis AP Biology
Abiotic Synthesis of Macromolecules • RNA monomers have been produced spontaneously from simple molecules • Small organic molecules polymerize when they are concentrated on hot sand, clay, or rock AP Biology © 2011 Pearson Education, Inc.
- Page 1 and 2: “…sparked by just the right com
- Page 3 and 4: Concept 25.1: Conditions on early E
- Page 5 and 6: • In the 1920s, A. I. Oparin and
- Page 7 and 8: Conditions on early Earth AP Biolog
- Page 9: Stanley Miller University of Chicag
- Page 13 and 14: • Adding clay can increase the ra
- Page 15 and 16: Self-Replicating RNA and the Dawn o
- Page 17 and 18: The Fossil Record • Sedimentary r
- Page 19 and 20: • Few individuals have fossilized
- Page 21 and 22: Fraction of parent isotope remainin
- Page 23 and 24: Concept 25.3: Key events in life’
- Page 25 and 26: Table 25.1 AP Biology
- Page 27 and 28: Table 25.1b AP Biology
- Page 29 and 30: Figure 25.7-3 Cenozoic Humans Colon
- Page 31 and 32: Figure 25.UN03 1 4 2 3 AP Biology A
- Page 33 and 34: • By about 2.7 billion years ago,
- Page 35 and 36: Figure 25.UN04 1 4 AP Biology Singl
- Page 37 and 38: First Eukaryotes • Development of
- Page 39 and 40: 2 nd Endosymbiosis • Evolution of
- Page 41 and 42: Figure 25.UN05 1 4 2 3 AP Biology M
- Page 43 and 44: Figure 25.UN06 Animals 1 4 2 3 AP B
- Page 45 and 46: AP Biology
- Page 47 and 48: Figure 25.10 Sponges Cnidarians Ech
- Page 49 and 50: The Colonization of Land • Fungi,
- Page 51: Is there life elsewhere? Does it lo
Key Events in Origin of Life<br />
• Origin of Cells (Protocells)<br />
lipid bubbles separate inside from outside<br />
metabolism & reproduction<br />
• Origin of Genetics<br />
RNA is likely first genetic material<br />
multiple functions: encodes information (selfreplicating),<br />
enzyme, regulatory molecule,<br />
transport molecule (tRNA, mRNA)<br />
• makes inheritance possible<br />
• makes natural selection & evolution possible<br />
• Origin of Eukaryotes<br />
endosymbiosis<br />
AP Biology
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