In Angiosperms pollen tubes liberate their male gametes into the:

The male gametes in the pollen tube are discharged into the synergid cells from where the first male gamete is transferred to the egg cell of the embryo sac. The other male gamete is transferred to the central cell through the cytoplasmic current. Related Theory Towards the micropylar end, a mature ovule consists of embryo sac which has an egg apparatus (an egg cell and two synergids), centrally placed two polar nuclei and 3 antipodal cells at the chalazal end.