BIOL 1202 Study Guide - Midterm Guide: Simple Eye In Invertebrates, Zygote, Gene Duplication
Document Summary
Much protist diversity has its origin in endosymbiosis. Plastid-bearing lineage evolved into red and green algae. Protists have a wide variety of life histories. Zygotic life cycle: haploid cells transform into gametes, gametes fuse to form zygotes (e. g. plasmodium, which causes malaria) Alternation of generations: produce 2 types of multicellular organisms (n and 2n); many algae and all land plants. Blah blah blah its 2, it was an amoeba, Concept 28. 2 : excavates include protists with modified mitochondria and protists with unique flagella. Main feature of euglenozoans is a spiral or crystalline rod of unknown function inside their flagella. Single, large mitochondrion containing an organized mass of dna called a kinetoplast. Have one or two flagella that emerge from a pocket at one end of the cell. Concept 28. 3 : chromalveolates may have originated by secondary endosymbiosis. Two flagella make them spin as they move through the water.
