1. Name the part of gynoecium that determines the compatible nature of pollen grain. 2. How many haploid cells are present in a mature embryo sac?
Understand the Problem
The image presents two biology questions related to plant reproduction. The first asks about the part of the gynoecium that determines pollen grain compatibility. The second asks about the number of haploid cells in a mature embryo sac.
Answer
Stigma determines pollen grain compatibility. A mature embryo sac has 7 haploid cells.
The part of the gynoecium that determines the compatible nature of the pollen grain is the stigma. A mature embryo sac contains 7 haploid cells.
Answer for screen readers
The part of the gynoecium that determines the compatible nature of the pollen grain is the stigma. A mature embryo sac contains 7 haploid cells.
More Information
The embryo sac is the female gametophyte of flowering plants, and its 7 cells include the egg cell, two synergid cells, and a central cell with two polar nuclei, plus three antipodal cells.
Tips
It is important to remember that while the embryo sac has 8 nuclei, it only has 7 cells.
Sources
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