BIO206H5 Chapter Notes -Transmission Electron Microscopy, Scanning Electron Microscope, Hydrogen Atom
Document Summary
30/05/2010 20:30:00: all living this are made of cells : small, membrane-enclosed, units filled with a concentrated aqueous solution of chemicals and endowed with the extraordinary ability to create copies of themselves by growing and dividing in two. It is almost certain that chloroplasts have evolved from photosynthetic bacteria that found a home inside the plant cell"s cytoplasm: two domains: Bacteria include most of the prokaryotes familiar from everyday life. Eu" = true, karyon" = kernel, nut or nucleus: bigger and more elaborate (as compared with prokaryotes, some live as single-celled orgs (e. g. Amoeba, yeasts: other live in multicellular assemblies. Nucleus : usu the most prominent organelle, enclosed within two concentric membranes that form that nuclear envelope", contains molecules of dna. It is evident that there is a symbiotic rltnshp in which the host eukaryote and the engulfed bacterium helped one another to survive and reproduce.
