Chloroplasts comprise three different membranes (the doublemembrane envelope and the thylakoid membrane), which enclose three distinct soluble phases (intermembrane space, stroma and thylakoid lumen)
Chloroplasts comprise three different membranes (the doublemembraneenvelope and the thylakoid membrane), which enclosethree distinct soluble phases (intermembrane space, stroma andthylakoid lumen)