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.
1 Chicken breasts with skin and bones should cook for about 30 minutes. 2  Skinless, boneless chicken breasts should cook for 20-25 minutes. 3  If they are cut in half, then cook for 15-20 minutes.