MICROANATOMY

Detailed explanation-1: -What is stroma in a chloroplast? Stroma is the fluid-filled internal space of the chloroplasts which encircle the grana and the thylakoids. It contains chloroplast DNA, starch and ribosomes along with enzymes needed for the Calvin cycle.

Detailed explanation-2: -Stroma (from Greek ‘layer, bed, bed covering’) is the part of a tissue or organ with a structural or connective role. It is made up of all the parts without specific functions of the organ-for example, connective tissue, blood vessels, ducts, etc.

Detailed explanation-3: -The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma (Figure 3, Figure 4).