Pollen contains vegetative (non-reproductive) cells and a generative (reproductive) cell.
Pollen grains, essential for plant fertilization, aren't just simple particles. They're actually gametophytes, meaning they represent an entire, albeit miniature, plant generation that produces the male gametes (sperm cells). Inside each pollen grain, you'll find two distinct types of cells:
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Vegetative Cell(s): These are non-reproductive cells that primarily function in guiding the pollen tube's growth down the pistil towards the ovule. In most flowering plants, there is only one vegetative cell, but in other seed plants, there can be several.
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Generative Cell: This is the reproductive cell that will eventually divide to form the sperm cells that fertilize the egg cell in the ovule.
Therefore, pollen is a complex structure containing the cells necessary for plant reproduction.
