Girasol definition, an opal that reflects light in a bright luminous glow. See more.
Pheophytin or phaeophytin (abbreviated Pheo) is a chemical compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II (PS II) in plants, and the photosynthetic reaction center (RC P870) found in purple bacteria.
Diaphysis = shaft consisting of compact bone that forms a cylinder and surrounds a central canal called the medullary cavity which contains fatty yellow marrow in adults and consists primarily of fat cells and a few scattered blood cells. Distal epiphysis and proximal epihysis = the two ends of the bones. Both ends have a somewhat bulbous shape to provide space for muscle and ligament attachments near the joints. the epiphyses are covered with articular cartilage, a type of elastic connective tissue that provides a smooth surface for movment of jionts.