Stroma

From open-encyclopedia.com - the free encyclopedia.

This article is about stroma in biology. For the island, see Stroma, Scotland.

Stroma refers to 1) the connective supportive framework of a biologic cell, tissue, or organ. 2) the structure of a chloroplast surrounding the thylakoid membranes wherein the dark reactions of photosynthesis (better known as the Calvin Cycle) take place.