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.
Directions. 1  salt and pepper both side of the steaks to your taste. 2  Put in a 400 degree oven on the middle rack of 16 minutes turning once. 3  Then Broil 5 minutes per side (on highest rack in your oven) Then remove from oven and Let rest at least 8 min's covered with aluminum foil. salt and pepper both side of the steaks to your taste. 2  Put in a 400 degree oven on the middle rack of 16 minutes turning once. 3  Then Broil 5 minutes per side (on highest rack in your oven) Then remove from oven and Let rest at least 8 min's covered with aluminum foil.