Embed Size (px)
DESCRIPTION
Slide 3 spontaneous formation of lipids, carbohydrates, amino acids, proteins, nucleotides under abiotic conditions living cells self-replicating system enclosed in a selectively permeable, protective lipid sphere DNARNA enzymes and other proteins formation of protein-RNA systems, evolution of DNA formation of lipid spheres membrane-bound proto-cells Stepped Art Figure 20.5d Page 331
Citation preview
Slide 1
to vacuum pump
boiling water
sparkdischarge
liquid water in trap
water containingorganic compounds
water droplets
water in
condenser
electrodes
water out
CH4
NH3
H2OH2
gases
Figure 20.3bPage 329
Slide 2
four formaldehyde molecules with four pyrrole rings
porphyrin ring system
6H
chlorophyll a
Stepped ArtFigure 20.4Page 330
Slide 3
spontaneous formation of lipids,carbohydrates, amino acids, proteins,nucleotides under abiotic conditions
livingcells
self-replicating system enclosed in aselectively permeable, protective lipid sphere
DNA RNA enzymes andother proteins
formation ofprotein-RNA systems,
evolution of DNAformation oflipid spheres
membrane-bound proto-cells
Stepped ArtFigure 20.5d
Page 331
Slide 4
3.8 3.2 2.5
Cyclic pathway ofphotosynthesis
Noncyclic pathwayof photosynthesis
Aerobic respiration
Origin ofProkaryotes
Eubacterial Lineage
Ancestors Of Eukaryotes
ArchaebacterialLineage
billion years agoFigure 20.6 (1)
Page 332
Slide 5
Origins of eukaryotes Origins of animals
Origins of fungiorigin of mitosis, meiosis
Endosymbiotic origins of mitochondria
Endosymbiotic origins of chloroplasts
1.2 bya 900 mya 435 mya present
ARCHAEBACTERIAExtreme halophilesMethanogensExtreme thermophiles
EUKARYOTESAnimalsHeterotrophic protistans
FungiPhotosynthetic protistans
Plants
EUBACTERIAOxygen-producing photosynthetic eubacteria Other photosynthetic eubacteriaHeterotrophic and chemoautotropic eubacteria
Origins of plants
Figure 20.6 (2)Page 333
Slide 6
DNA
infolding of plasma membrane
Figure 20.10Page 335
Slide 7
Gondwana
In-text figurePage 336
Slide 8
Pangea
Tethys sea
In-text figurePage 337
Slide 9
In-text figurePage 338
Slide 10millions of years ago
number of genera
other genera
200
ginkgo
cycads
ferns
angiosperms
150
100
50
0160 140 120 100 80 60
conifers
250
Figure 20.14Page 338
Slide 11
In-text figurePage 340
Slide 12
Devonian. Jawed fishes evolve, diversify; ancestors of amphibians invade land.
Cambrian. Explosion of diversity in equatorial seas; icy polar regions.
Silurian. Sea level rises, diverse marine life; plants, invertebrates invade land.Gondwana
Stepped ArtFig. 20.18 (1)
Page 342
Slide 13
Middle Miocene. Polar regions again iced over, as in Cambrian.
Cretaceous into Tertiary. Extinction of dinosaurs; rise of mammals.
Permian into Triassic. Swamp forests (coal source); seed plants evolve.
Pangea Stepped ArtFig. 20.18 (2)
Page 342
