Biology 3484A/B Lecture Notes - Lecture 12: Excavata, Phagocytosis, Paramecium

• School: Western University
• Department: Biology
• Course: Biology 3484A/B
• Professor: Eric Ball

Document Summary

Bacterial diversity: bacteria can be harmful as well: can cause diseases, example: lyme disease (genus borrelia, produces antibiotics becomes resistant and hard to treat, example: genus streptomyces. Proteins?: ex: yellowstone hot springs, 1996 study found 17 species, ex: cenarchaeum symbiosum, o(cid:373)e spe(cid:272)ies (cid:374)o(cid:449) fou(cid:374)d i(cid:374) (cid:373)ore (cid:858)(cid:374)or(cid:373)al(cid:859) e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)ts like soil, i(cid:374) (cid:373)ari(cid:374)e spo(cid:374)ges at 6-19. C, or animal guts: we now know that a lot of these bacteria are found in more soils and other normal environments like guts, therefore, found in both extreme and normal environments. Early eukaryotes: eukaryotes are what is left, the(cid:455) ha(cid:448)e a lot of differe(cid:374)t parts of the (cid:272)ell that prokar(cid:455)otes do(cid:374)(cid:859)t. Early eukaryotes: fossils from 1. 6 billion years ago, other (possible eukaryotes) date to 2. 1 billion years ago. Greatest evolutionary discontinuity in the world: the eukaryotes are a monophyletic group, very big differences between pro and eukaryotes. Large range in size they can be one cell or can be very large and multicellular.