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drag the labels to the appropriate locations in this diagram. first drag pink labels to pink targets to label the two host cells. then drag blue labels to blue targets to label the structures and endosymbionts of the two cells.
drag the labels to the appropriate locations in this diagram. first drag pink labels to pink targets to label the two host cells. then drag blue labels to blue targets to label the structures and endosymbionts of the two cells.
Theendosymbiotic theorystates that an ancestor cellphagocyted photosyntheticandoxygen-consumer prokaryotes, and originated eukaryotic cells withmitochondriaandchloroplasts. a) Oxygen-using prokaryote, b) Mitochondrion, c) Nucleus, d) Endoplasmic reticulum, e) Host cell: Ancestor of all eukaryotes, f) Photosynthetic prokaryote, g) Chloroplast, h) Host cell: Ancestor of photosynthetic eukaryotesWhat is the endosymbiotic theory?Theendosymbiotic theoryproposes thatmitochondriaandchloroplastswere oncefree-living bacteriathat werephagocytizedby another cell but not digested. These bacteria got to adapt to their host, and both cells became interdependent.Bothorganelleshave many similarities with otherfree-living bacteria.Chloroplastsprobably derivate fromcyanobacteriabecause both cells absorb sunlight, and produce ATP, and organic molecules.Mitochondriaderivate fromrickettsiasbecause they produce ATP in the same way by using the Krebs Cycle and Oxidative Phosphorylation.Chloroplasts and mitochondria share some traits with free-living bacteria, that support the theory.Both organelles present theirgenetic material. This DNI is independent of the cell's DNA, is bi-catenary and circular, identical to the bacterial DNA, and very different from the one of the eukaryotic cells.Both organelles divide bybinary fission, not by mitosis, and can synthesize their ribosomes and organelles.Both organelles present adouble membrane,a characteristic that reinforces the idea of being phagocyted. Theinternal membranelooks identical to the bacterial membrane, while theexternal membranelooks like the eukaryotic one.In fact, in this internal membrane are placed theenergy centers, just as occurs inbacterias membrane.Finally, thesizesof the organelles are similar to the size of someprocaryotes.In the image,a) Oxygen-using prokaryoteb) Mitochondrionc) Nucleusd) Endoplasmic reticulume) Host cell: Ancestor of all eukaryotesf) Photosynthetic prokaryoteg) Chloroplasth) Host cell: Ancestor of photosynthetic eukaryotesYou can learn more about theendosymbiotic theoryatbrainly.com/question/22033983#SPJ1...