Biology 1002B Lecture Notes - Lecture 1: Chlamydomonas, Eukaryote, Rhodopsin
27 Jan 2016
School
Department
Course
Professor
Document Summary
Unicellular eukaryote: nucleus, choroplas, 10um in size (10x size of bacterium, uses light and energy for information, able to make proteins, eyespot (red semicircle) trap photons, uses them to make sugar. Similar to human eye, uses to gain information on the outside environment: flagella and cilia structure is identical to humans, small, can grow millions with little effort/maintenance, simple, relatively small genome. Complex organisms do not make good model systems. Can easily manipulate genome: fast reproduction. Relatively close to the base of the eukaryotic phylogeny: split off the plant tree very early on. Other than photosynthetic ability, does not share much with plants: fundamental characteristics of eukaryotic cells. 2: products of meiosis in chamydomonas are spores, asexual reproduction by meiosis, haploid cells divide by mitosis, environmental stress. Leads zoospores to behave like gametes, and fertilize each other to create the zygote again.
