Question

In albuminous seed, food is stored in and in non-albuminous seeds, it is stored in .
(a) Endosperm, cotyledons
(b) Cotyledons, endosperm
(c) Nucellus, cotyledons
(d) Endosperm, radicle

Answer 1

Hint: In monocots a tissue persists that forms after the fertilization for the storage of food while in dicots like pea, beans etc store food in a leaf like structure that is also known as embryonic leaves.

Complete Step by Step Answer:
The seeds which have endosperm are known as albuminous seeds. Endosperm is a special nourishing tissue present in the seed for the food storage. It will remain persistent till maturity. In albuminous seeds, food is stored in the endosperm so the cotyledons are small and thin compared to exalbuminous seeds. Most monocots and many dicots have albuminous seeds, and all gymnosperms are albuminous. Example: castor, wheat, date, grasses, tamarind, etc.
The seeds which do not have endosperm are called exalbuminous seeds. In exalbuminous seeds, the food is stored in the cotyledons in a special structure called kernel. A cotyledon is the embryonic leaf in seed bearing plants, which appears in a germinating seed. The food material stored up in the cotyledon in the form of oil, starch or protein. All seeds have endosperm at the beginning, but in this case it is completely absorbed by the developing embryo.So, the seed does not contain an endosperm. The cotyledons absorb all the nourishment, and become thick and fleshy. Hence, there is no endosperm inside such seeds and they are also known as non- endospermous seeds. Example: beans, peas, grams, sunflower, oak, etc.
So, the correct answer is endosperm, cotyledons.

Note:
- Kernal is the essential part of a seed, which is edible, contained in the shell of a nut. In coconut, the kernel is considered as endosperm and it is fleshy and contains oil.
- Botanists used cotyledon and its number to classify the flowering plants.