LIFESCI 1 Lecture Notes - Lecture 15: Rhizaria, Blastula, Paramecium
Document Summary
Vesicle developments transport materials & allow cells grow larger & diffusion take place more localized in the cell. Archaea & eukaryotes more closely related to each other than archaea & bacteria. Within eukaryotes, mitochondria & chloroplasts come from bacterial source early eukaryotes do phagocytosis (heterotrophic cell e. g. amoeba have to take c from another source) Mitochondria: small relative to eukaryotic cell, similar in size to proteobacteria, reproduce via fission, own genome (circular like bacteria , double membrane. 2 hypothesis of mitochondria, both include mitochondria living inside eukaryotic cells (early archaea-like cells before eukaryotic cells came into being) Protist: eukaryotic organism that is not an animal, plant or fungi >paraphyletic group. Red algae & green algae are earliest photosynthetic eukaryotes. Eukaryotic tree of life: 7 super kingdoms, all contain protists: opisthokonta super kingdom including animals & fungi & choanoflagellates. Primary endosymbiosis (photosynthesis in green/red algae: eukaryotic cell with a mitochondria engulf a cyanobacteria (one membrane, become photosynthetic cell (green/red algae)
