MMG301 1nd Edition Lecture 10Outline of Last Lecture I. PhotosynthesisOutline of Current Lecture II. EukaryotesIII. Evolution Current Lecture-eukaryote: an organism with a membrane enclosed nucleus and other organelles-mitochondrion: site of respiration-chloroplast: site of photosynthesis-endosymbiosis: an organism engulfs another organism and over time, gains the function of the organism it engulfed-mitochondria and chloroplasts originated by endosymbiosis-protists: unicellular and colonial microbial eukaryotes other than fungi-protozoa: unicellular heterotrophic protists-evolution-reductive: loss of a function-convergent: similarities evolved independently by different groups-mitochondrion: performs respiration and oxidative phosphorylation as source of energy-hydrogenosome: a degenerate mitochondrion; formed by reductive evolution; performsoxidation of pyruvate as a source of energy; unable to perform the citric acid cycle (CAC) because it lacks the necessary enzymes-fungiThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-cell walls contain chitin, which is a little bit different than cellulose, so that fungi is able to break down organisms with a cell wall composed of cellulose-use absorptive nutrition: secrete digestive enzymes and absorb broken-down molecules-come in various forms-filamentous, unicellular, and mushrooms-decompose and mineralize organic carbon-for example: they are the only organism that can degrade wood-dominate the microbial biomass in
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