ABSTRACT

I. INTRODUCTION The biological conversion of light quanta energy into chemical energy is known as photosynthesis. The photosynthesis takes place in the chloroplasts. Electron micrographs (Figure 1) of chloroplasts of higher plants revealed that they consist of a double membrane envelope enclosing a complex of inner membranes known as thylakoids. The thylakoid membrane system of one chloroplast is believed to be formed from one continuous membrane, which divides the inner chloroplast volume into two separate spaces: extrathylakoid (stroma) and intrathylakoid (thylakoid lumen) [1-3]. The biochemical part of photosynthesis takes place in the stroma, which contains all the enzymes of the CO2 fixation pathway.