Geobio at Universität Hamburg

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Study with flashcards and summaries for the course Geobio at the Universität Hamburg

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Chemosymbiose

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Photosymbiose

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

sekundäre Endosymbiose

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

primäre Endosymbiose

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Lokiarchaeota

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Endosymbiosetheorie

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

The Big Five

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Kambrische Explosion 

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BIF´s

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Belege f. anoxische Uratmosphäre

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Great Oxidation Event

Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Endosymbionten

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Exemplary flashcards for Geobio at the Universität Hamburg on StudySmarter:

Geobio

Chemosymbiose

Tiere (zB Muscheln) enthalten chemotrophe Endosymbionten

Geobio

Photosymbiose

Tiere (zB zooxanthellate Korallen) enthalten phototrophe Endosymbionten

Geobio

sekundäre Endosymbiose

die Aufnahme einer
Prokaryotenzelle durch einen heterotrophen Eukaryoten 

Geobio

primäre Endosymbiose

Aufnahme einer Prokaryotenzelle durch
einen Prokaryoten

Geobio

Lokiarchaeota

-bilden in phylogenetischen Analysen ein monophyletische Gruppe mit
Eukaryoten und stellen vermutlich den lang gesuchten ‚missing link‘ zwischen Archaeen
und Eukaryoten dar
– haben Eigenschaften und Fähigkeiten, die man bis dato
nur von Eukaryoten kannte

Geobio

Endosymbiosetheorie

-> Eukaryoten dadurch entstanden : dass
Archaeenzellen (1) phototrophe Bakterien aufgenommen haben und das andere
Archaeenzellen (2) heterotrophe Bakterien aufgenommen haben. Aus der Phagozytose
entstanden (1) pflanzliche Zellen, aus (2) entstanden tierische Zellen.

Geobio

The Big Five

– 429 Ma, oberes Ordovizium

– 360 Ma, oberes Devon
– 252 Ma, Perm-Trias
– 208 Ma, obere Trias

– 66 Ma, Kreide-Paläogen

Geobio

Kambrische Explosion 

– Entstehung v. mehr Tiergruppen
– durch Massensterben am Ende d. Perms ging die Artenvielfalt der Tiere dramatisch zurück
– das Massensterben am Ende d. Kreidezeit führte z. “Aussterben d. Dinos” 
– geht einher mit der agronomischen Revolution

Geobio

BIF´s

Entstehung: 3.8-2.2 Ga
Ort: Auf Schelf m. Wassertiefe – 200m
Eisenquelle: Vulkanismus d. MOR

Geobio

Belege f. anoxische Uratmosphäre

Pyritkonglomerate und BIFs (Bändereisenerze) belegen, dass die Uratmosphäre anoxisch war

Geobio

Great Oxidation Event

Dauer – ca. 2.5Ga-2.0Ga
– Oxidation d. Sedimentes
– Anreicherung im Ozean
– Anreicherung in Atmosphäre (an 02)

Geobio

Endosymbionten

– Sulfidoxidierene Bakterien
– Methanoxidierende Bakterien
– Wasserstoffoxidierende Bakterien

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