BIOL 1200 Midterm: Exam 3 Study Guide Part 2
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Mitochondrial-bacterial similarities (size, circular dna molecule, ribosomes, binary fission, 2 membranes), mitochondrial dna is more like prokaryote dna (phylogeny): can you interpret the data in the scientific skills exercise on pg. To which group are chloroplasts most closely related: mitochondria: alpha-proteobacteria. Chloroplasts: cyanobacteria: distinguish between primary and secondary endosymbiosis. Know in detail: primary endosymbiosis: when a eukaryote engulfs a bacterium (once with red algae and twice with green algae), secondary endosymbiosis: when a eukaryote engulfs an algal species that already contains elements of past endosymbiosis. How do they differ between choanoflagellates and animals: adhesion proteins. Animals have the ccd domain, which is responsible for adherence in animalia. Which green algal lineage is most closely related to land plants: no, they"re paraphyletic. Check your ppts: waxy cuticle; pores (to limit water loss); stomata; vascular tissue (transport water and support upright growth); gametes produced in gametangia;
