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Q98
(NDA-I/2026)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
Which one of the following parts of an ovule possesses reserve food?
Result
Your answer:
—
·
Correct:
D
Explanation
The nucellus is the central and largest part of the ovule, located inside the integuments. It consists of a mass of diploid parenchymatous cells that contain abundant reserve food materials. This nutritional tissue is essential for the development of the embryo sac (megagametophyte). In most plants, the nucellus is consumed during the development of the embryo sac and the seed, but in some species (like black pepper and beet), it persists as a nutritional layer known as the perisperm.
- Integuments are the protective envelopes surrounding the nucellus.
- The funicle is the stalk that attaches the ovule to the placenta.
- The chalaza is the basal part of the ovule where the integuments and nucellus meet.
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