Photosynthesis is a process by which green plants synthesize food(glucose) By capturing sunlight with the help of Chlorophyll.Since they are not able to synthesize their own chlorophyll molecules , they steal these chlorophyll molecules from an algal species Vaucheria litorea. by a phenomenon known as kleptoplasty. In this phenomenon Elysia feeds on the algae vaucheria by puncturing a hole in its cell wall through its radula, then it holds the algal strand firmly in its mouth and starts sucking out the sap like a straw. Instead of digesting everything it ingests, it stores the chloroplasts in its own cell (Phagocytosis) through a specialized digestive system.
