In a typical angiosperm ovule, a parenchymatous mass of tissue is enclosed within the integuments and contains abundant reserve food materials. Identify this tissue along with its correct ploidy level.

Step-by-step solution

The parenchymatous mass of tissue enclosed within the integuments of an ovule is the nucellus. Cells of the nucellus have abundant reserve food materials. Since the nucellus is a part of the sporophyte (the main plant body in angiosperms), its cells are diploid (2n). The embryo sac is the female gametophyte, which is haploid (n) and is located inside the nucellus. The endosperm is a post-fertilization tissue in angiosperms and is typically triploid (3n), formed by primary endosperm nucleus. Answer: Nucellus, Diploi