BIOL 119 Chapter Notes - Chapter 30: Ciliate, Meiosis, Macronucleus
Document Summary
Amoebozoa: lack cell walls, take in food through engul ng it. Move through an amoeboid motion and make large, lobe-like pseudopodia. Plasmodial slime molds: form large, weblike structures containing a single cell with thousands of 2n/diploid nuclei. This large structure is almost only unique to this kind of protist only. This weblike structure is called a supercell: move through amoeboid motion or cytoplasmic streaming. A decomposer: reproduce through spreading of spores when food becomes scarce. Spores grow into amoebae and two of them fuse together to form a diploid cell. After given time to grow, will eventually grow into a supercell. Flat cristae instead of tube shaped like in other eukaryotes. All have a excavated feeding groove found on one side of the cell. Some lack mitochondria, but have either a trace of the dna for them in their genome, or have organelles that appear to be vestigial mitochondria. Asexually reproduce: most excavata feed through engul ng their food.
