The thylakoid membranes of a chloroplast is an internal system of interconnected membranes, that carry out the light reactions of photosynthesis. They are arranged into stacked and unstacked regions called grana and stroma thylakoids, respectively, that are differentially enriched in photosystem I and II complexes.
1 Broil 4- to 5-ounce boneless, skinless chicken breasts 12 to 15 minutes, turning over about halfway through the cooking time and brushing with sauce or seasoning if desired. 2  Remove chicken when it reaches 170 degrees F and is no longer pink.
Full Answer. An average sized chicken breast should cook for approximately 20 minutes at a temperature of 400 degrees Fahrenheit. If the temperature of the oven is lower, the chicken needs to cook for an additional 10 to 15 minutes. Larger chicken breasts may also require additional cooking time.