👉 Plastids are a group of cells that are found in plant cells. They play an important role in photosynthesis, where they absorb light energy from the sun and use it to convert water and carbon dioxide into glucose and oxygen. The plastid pigments in these cells contain molecules called flavin adenine dinucleotide (FAD), nicotinamide adenine dinucleotide (NAD), and thiamine pyrophosphate (TPP). These compounds are essential for the process