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Pollen tube formation is important for sexual reproduction to occur in seed plants. Pollen tubes act as conduits to transport the male gamete cells from the pollen grain either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms.

The role of pollen tube in spermopsida is to transfer the male gamete.

What is spermopsida?

Spermopsida consists of members of plant kingdom that produce seeds.

What is seed?

  • It is the structure formed after the fertilization of ovule.
  • It contains an embryo, endosperm, and seed coat.

What is pollen tube?

  • "It is produced by the male gametophytes when they germinate."
  • They germinate on stigma on the angiosperms
  • In gymnosperms they germinate on the ovule.
  • It is made by the elongation of inner wall of pollen grain.
  • They transport the male gamete to the egg cell.

What is the inner wall of pollen called?

The inner wall of pollen is called intine.

To learn more about spermopsida, ovule, seed, seed and male gamete here,

https://brainly.com/question/12915834

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