Question

In groundnut, oil is stored in
(a)Embryo axis
(b)Endosperm
(c)Cotyledons
(d)None of the above

Answer 1

Hint: They are a significant part of the embryo within the seed of a plant, and are defined as "the embryonic leaf in seed-bearing plants”. They provide nourishment to different parts of the embryo. They emerge as a tiny or fleshy leaf from the soil with the seedling during growth.

Complete answer:
In the groundnut, oil is stored in Cotyledons. They act as the first leaves of the seedling that comes out during the seed germination. Cotyledons are formed in the course of embryogenesis, together with the root and shoot meristems, and are therefore present in the seed prior to germination. They store food in the form of starch and protein. They supply food to the baby plant coming out during the seed germination.

Additional Information: Those seeds that have a single cotyledon are called monocot seeds, such as wheat, rice, maize, etc. Seeds with two cotyledons are called dicot seeds, such as gram, peas, etc. In plants like pine and other gymnosperms, there can be as many as eight to twenty cotyledons in a seed.
Cotyledons are rich in proteins, starch, and fats. These stored are supplied to the seeding during germinating. Sometimes, the cotyledons may become photosynthetic in function during the process of germination.
So, the correct answer is ‘Cotyledons’.

Note: Highly refined peanut oil can contain traces of hexane, a petroleum byproduct used to maximize the separation of oil from the solids of peanuts. The EPA recognizes hexane as a neurotoxin in rat studies. Those allergic to peanuts can eat highly refined peanut oil but should avoid first-press, organic oil. Peanut oil, together with other vegetable oils, can be used to form soap by the process of saponification. Peanut oil is safe for use as a massage oil.