Across
- 2. The two cells flanking the egg cell that help guide the male gametes during double fertilization.
- 4. The large cell of the pollen grain that contains abundant food reserves and grows the pollen tube.
- 7. The stalk that attaches an ovule to the placenta inside the ovary.
- 9. The structure that represents the mature female gametophyte of angiosperms, containing 7 cells and 8 nuclei.
- 12. The cluster of three cells located at the chalazal end of the mature embryo sac.
Down
- 1. The cell within a pollen grain that divides mitotically to produce two male gametes.
- 3. Cellular thickenings on the synergid cells that secrete chemicals to guide the pollen tube.
- 5. The triploid (3n) nutritive tissue formed after triple fusion that feeds the developing embryo.
- 6. The central, nutrient-rich maternal tissue of the ovule where megasporogenesis takes place.
- 8. The structural region of the ovule opposite the micropyle, representing its basal passage.
- 10. The tiny opening or pore in the ovule wall through which the pollen tube enters the embryo sac.
- 11. The process of fusion of a haploid male gamete with a haploid egg cell to form a diploid zygote.