Science / Biology / Stroma: The matrix surrounding the grana in the inner membrane of chloroplasts. The area between membranes (thylakoids, grana) inside the chloroplast.
Science / Biology / Stromatolite: A sedimentological and biological fossil representinmg colonies of bacteria altenating with layers of sediments. Becoming more common during the Proterozoic, stromatolites persist today in marine envi MORE
Science / Biology / Calvin Cycle: Series of biochemical, enzyme-mediated reactions during which atmospheric carbon dioxide is reduced and incorporated into organic molecules, eventually some of this forms sugars. In eukaryotes, this o MORE