Answer:
Flat surface parallel to mesophyll walls position
Chloroplast assumed this position in condition of low light intensities or optimum light intensities for the reception of maximum amount of incident light. necessary for photosynthesis
Perpendicular to the incident light position.
During condition of extreme high light intensities chloroplast aligned in this position to avoid the loss of electrons from the chlorophyll from absorption of photons; (PHOTOXODATION.)
Basically photooxdation is a wasteful process which destroys the plants.
Explanation:
