a structure in the chloroplast of photosynthesizing cells, usu. one of an interconnected stack, having a pigmented membrane that is the site of photosynthesis. [< German Thylakoid (1961) < Greek thÈ³lakoeidá¸s resembling a bag =thylak(os) sack + -oÄidÄs -oid]
Round or rump roast almost two hours to reach medium rare, 3-pound roast six hours on low or longer. In a crock pot. On the stove top in a Dutch oven around two hours. Extra 15 minutes may be extended for medium or 30 minutes for well done. (source: http://www.ehow.com/way_5260879_long-cook-pound-roast.html).
Plan on oven-roasting the rump roast at 325 degrees Fahrenheit for about 28 to 33 minutes per pound for medium-rare meat, though the exact cooking time will vary depending on the roast's shape and size. Begin checking the meat after 45 minutes and continue checking it every 15 minutes after that.ump roast can be cooked in the oven or in a slow cooker. If you choose the oven method, you'll need to use a large covered pot such as a Dutch oven that can easily contain the meat or a roasting pan that can be covered with aluminum foil.