Chloroplast ), photosynthetic pigments ( Chlorophyll , Carotene , Xanthophyll ), photochemical phase , photophosphorylation , cyclic and non-cyclic , biosynthetic phase , C3 and C4 (HSK) pathways ( Kranz Anatomy , Photorespiration ), significance of photosynthesis. 4.3 Respiration : - ATP , ATPsynthesis , Types of respiration – aerobic and