Question

In which of these parts of the seed of a castor is food stored?

• A. radicle
• B. plumule
• C. cotyledons
• D. endosperm

Answer 1

The correct option is D

endosperm

The correct option is D

Explanation of the correct option:

1. A typical seed consists of an embryo, endosperm, and seed coat.
2. The embryo of a matured seed consists of cotyledons, plumule, hypocotyl, and radicle.
3. The endosperm is a food reserve that develops in certain seeds.
4. Seeds with endosperms are called endospermic seeds. For example- castor, cereals, maize, grasses, etc.
5. Seeds without the endosperm are called non-endospermic seeds. For example- pea, gram, lentil, etc.
6. The nutrients in the endosperm are used in the development of the embryo during germination.

Explanation of the incorrect option:

Option A:

1. The radicle is the part of the axis that projects out of the cotyledons and is called the radicle.
2. Radicle gives rise to the primary root.

Option B:

1. Plumule develops from the embryonic axis and gives rise to the primary shoot.

Option C:

1. Cotyledons are also known as seed leaves.
2. Cotyledons store food material for the embryo.

Final answer: The seed of the castor where food is stored is the endosperm.