Thylakoid Definition. A thylakoid is a sheet-like membrane-bound structure that is the site of the light-dependent photosynthesis reactions in chloroplasts and cyanobacteria. It is the site that contains the chlorophyll used to absorb light and use it for biochemical reactions.
Turn the oven down to 200ÂºF and cook for about 1 hour per pound. Check your meat with a thermometer after 2.5 hours for a 2.5 pound roast. Follow these guidelines for doneness when checking temperature 1  : 130ÂºF Rare.
Cover the top of the pork with the olive oil and massage in well. Place the pork into your oven and bake for 1 hour and 15 minutes. I baked it for the first hour at 180 degrees celsius and then the last 15 minutes at 200 degrees celsius to obtain a crust on the roast.