LIFESCI 1 Study Guide - Final Guide: Pollen, Green Algae, Seed Dispersal
Document Summary
Asexual reproduction through mitosis or cell division. Strategies utilized by eukaryotes: conjugation, sexual reproduction, asexual reproduction. Eukaryotic organism that is not an animal, plant or fungi: paraphyletic group, photosynthetic protists= algae, heterotrophic protist= protozoans. Molecular phylognies of protists: two major divisions. Bikonta: protists are paraphyletic bc some protists evolved into other groups, all protists contain a nucleous. Single-celled eukaryotic heterotrophs: can engulf food via phagocytosis. An organism of one species lives inside the cell of an organism of another spieces: mutually beneficial. Host cell supplies bacterium with protection and c. Host cell supplies bacterium with protection and access to light. Bacterium supplies host cell with o2 and c (photosynthesis) Symbiosis: chloroplasts evolved from cyanobacteria living as endosymbionts with eukaryotic cells. Primary and secondary (draw pic on slide 18) Photosynthetic protist is engulfed: nucleus from photosynthetic protest is lost, organelle has four membranes photosynthetic eurkaryotes: chloroplasts evolved from cyanobacteria living as endosymbionts with eukaryotic cells.
