BIOL 1030 Lecture Notes - Lecture 21: Green Algae, Brown Algae, Contractile Vacuole

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Scott Kevin

Document Summary

Pellicle - movement, eye spot, nucleus, pm, chloroplast, contractile vacuole. Pathogens are hard to combat harder because humans are also in this group. Descendants of a protist that engulfed a cyanobacteria. Volvox - hollow ball of cells- new colonies forming inside. Ulva - multicellular thallus - no roots, no steams or leaves - look like plants. The dominant, long lived phase of the life cycle is haploid. Long lived phase of the organism is haploid. This s different that in animals which produce gametes by meiosis. Stage 1) make haploid cell and makes zoospore (identical) A reproductive cell giving rise to a phase in the life cycle without fusion with another cell. Different and distinct from a gamete: gamete + gamete = zygote, the zygote develops in another life stage. The only cell that is capable of meiosis. Plant makes a gamete that fuses with another gamete that undergo fertilization and makes a zygote.