BIO 1130 Lecture Notes - Lecture 10: Lipid Bilayer, Nitrogen Cycle, Archaea

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Phanerozoic (543 ma to present time: multicellular organisms. Proterozoic (2500-543 ma: oxygen atmosphere, single celled aerobic organisms. Archaean (3800 2500 ma: anaerobic bacterial life, oxygen starts to accumulate. Hadean (4600 3800 ma: formation of the solar system and planet, ends with origin of life. First organisms on the planet: digests glucose inside of the body. Plantae: capture energy, glucose from solar energy, autotrophs. Fungi: heterotrophs, energy from glucose, absorbs outside of the body. Includes several groups of unicellular eukaryotes: multicellular. Eu = seperates the common term from the 1990s. If its too small, things can be absorbed. Excretion and intake of nutrients and wastes. Too large, difficult to move across plasma membrane. Gram positive: capsule, peptidoglycan layer, plasma membrane, cytoplasm, treatable with penicillin. Gram negative: no capsule, outer membrane added. Always composed of 40 proteins: 23 are universal, 1 set to form a ring.