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.
You can broil the steak in the oven. Turn oven to broil and set the temp on about 350 degrees and cook for about twenty minutes.Cook a little less or a little longer, depending on how you like your steaks.ou can broil the steak in the oven. Turn oven to broil and set the temp on about 350 degrees and cook for about twenty minutes.