1. Photosynthesis The process by which solar light energy is trapped by chloroplasts and stored in the chemical bond energy stored in sugar and other organic molecules.

11. Chloroplasts are lens-shaped organelles measuring about 2-4 microns by 4-7 microns. These organelles are divided into three functional compartments by a system of membranes. Intermembrane Space: The chloroplast is bound by a double membrane, which partitions its contents from the cytosol. A narrow Intermembrane space separates the two membranes.