Arise from the golgi destroy cells or foreign matter

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Arise from the Golgi Destroy cells or foreign matter engulfed by phagocytosis Autophagy - Recycle cell’s own organelles and macromolecules Lysosomes digest materials from in- and outside the cell Hydrolytic enzymes catalyze breakdown of macromolecules Lysosome interior is highly acidic (pH~4.8) compared to cytosol (pH~7.2) How would you expect the lysosome environment to be different from the cytosol?
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Eukaryotes: Vacuoles have diverse functions In plants, fungi, and protists May have one or several vacuoles per cell Food vacuoles are formed by engulfment of another cell through phagocytosis Contractile vacuoles , found in many freshwater protists, pump excess water out of cells Central vacuoles , found in many mature plant cells, hold organic compounds and water
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Chloroplasts and Mitochondria Campbell and Reece, Biology 6th ed Have double membranes Have their own genome of circular DNA Reproduce by pinching in half, like bacteria Are not part of the endomembrane system
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Endosymbiotic theory A prokaryote was engulfed by another cell and became a permanent resident inside.
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Chloroplasts and mitochondria are descended from free-­‐living organisms 2012/jan/06/lynn-­‐margulis-­‐obituary-­‐letter Lynn Margulis: Endosymbiosis Chloroplasts (a kind of plastid) from cyanobacteria Mitochondria from bacteria Which of these organelles do animals have?
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