Answer:
The raw materials for photosynthesis are:
Carbon dioxide: A gas that is released into the atmosphere during respiration.
Water: Another requirement for photosynthesis is transported upward through the xylem tissue to the leaves, from where it reaches photosynthetic cells.
Chlorophyll: A green pigment in plants that act as a catalyst. It is responsible for the absorption of the sun's light by the plant. The chlorophyll pigments are photoreceptor molecules that play a key role in the photosynthesis process.
Sunlight: Green plants make their own food from carbon dioxide and water in the presence of sunlight.
