AP BIOLOGY

Detailed explanation-1: -Stroma, in botany, refers to the colorless fluid surrounding the grana within the chloroplast. Cell biology. Chloroplast. Components of a typical chloroplast. 1 Granum.

Detailed explanation-2: -Grana are connected to each other by structures called lamellae, and they are surrounded by a gel-like material called stroma.

Detailed explanation-3: -Grana are stacked thylakoids, which are membrane-bound, flattened discoid sacs that hold chlorophyll molecules. They are the fundamental functioning units of chloroplasts. Stroma is the homogenous matrix in which grana are embedded. Photosynthetic enzymes, starch grains, DNA, and ribosomes make up Stroma.

Detailed explanation-4: -role in photosynthesis …the chloroplast is called the stroma.

Detailed explanation-5: -Inside of the inner membrane, the chloroplast has a jelly-like matrix, much like the cytosol of the cell, called the stroma. The stroma surrounds a series of folded membrane-bound structures, thylakoids, that resemble pancakes and are stacked (again, much like pancakes) into columns called grana (granum, singular).