does photosythesis requier pigment moulecuels?
Photosynthesis requires Chlorophyll, which is composed of a mixture of pigments like chlorophyll a, chlorophyll b and xanthophyll. These pigments allow certain wavelengths of light to be used for photolysis, a required stage of the photosynthetic process.
Pigments are needed, because they absorb the energy from the light. Different chlorophylls absorb different wavelengths. When pigment absorbs the photon, it releases an electron, which is used in photosynthesis as energy. Without pigment the light would just past through or reflect and no energy would be left to the cell to be turned into sugar.