BIOL107 Lecture Notes - Lecture 2: Fauna, Flora, Gram Staining

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL107
• Professor: michaelharrington

Document Summary

Take in energy for metabolizing (maintenance, growth, reproduction, photosynthesis) The plant interacts with the environment and use it as food and avoid predators. Future generations can evolve and change and increase its survival ability. Roman word terms fauna (animals), flora (plants) Prokaryotes before nucleus, small organisms (1-10 m), all look the same but metabolically diverse. Eukaryotes true nucleus, large organisms (10-100 m), morphologically diverse (photosynthetic ones vs. non-photosynthetic ones) Prokaryotes: monera, archaea live in extreme environments. Methods used to identify cells and viruses: gram staining to see if it is positive or negative, if it contains bacteria or not, surface molecules antigens (target of antibody proteins) Viruses are noon-living things: prions (prp) found inside nerve cells or neurons, can kill neurons if misfolded. Prions are not alive as they lack the cellular machinery to grow and reproduce just like viruses.