Pollen is a powdery substance that contains micro gametophytes of seed plants. They manage the male gametes. Pollen grains contain a hard coat that protects the sperm cells while they move away, called the exine. The inside part is called the intine, and contains cellulose. They are created in the male anther; after they are formed wind, water, or animals carry them to the pistil or female structure. This is where it will germinate by producing a tube that transfers the sperm to the ovule. Most pollen is colored yellow like the ones in this picture.