level: Level 1
Questions and Answers List
level questions: Level 1
| Question | Answer |
|---|---|
| Biomarkers for archaea | Isoprenoid ether lipids - Diether lipids (Archaeol) - Tetraether lipids (GDGTs) |
| Membrane archaea: two kinds of bonds | x |
| Biomarker for ammonium oxidizing Thaumarchaeota | Crenarchaeol (GDGT) |
| Biomarker for methanotrophic Archaea | Isoprenoid lipids with low 13C content |
| Biomarker for halophilic archaea | dietherlipid with C25 isoprenoid chain |
| Biomarker of Crenarchaeota | Don't have specific biomarkers and don't produce Crenarchaeol , but produce other DGDTs |
| What do Thaumarchaeota do? | Oxdize ammonia to nitrate (nitrification) |
| Thaumarchaeota don't need...? | Light. But phytoplankton does. Both need Ammonium |
| ANME 1: | GDGTs |
| ANME 2: | Hydroxy diether lipids |
| What do ANME do? | They are anaerobic methanotrophs and oxidize methane |
| What can Thaumarchaeota produce themselves? | Oxygen. This is why they can live in the deep |
| GDGT-0 | x |
| GDGT -1 to 4 | x |
| GDGT-5 to 8 | x |