Explain the role of the pollen tube and nuclei in the formation of the endosperm nucleus

The pollen tube delivers a tube nucleus and two cells, the sperm cells. One sperm cell fuses with the egg to give the embryo, which is diploid. The other sperm cell fuses with the two polar nuclei to give the endosperm, which is triploid.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.