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In a seed of maize, scutellum is considered as cotyledon because it:
A. Protects the embryo.
B. Contains food for the embryo.
C. Absorbs food materials and supplies them to the embryo
D. Converts itself into a monocot leaf.

Answer
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Hint: The cotyledon is a tiny structure that resembles a shield and is found in maize grains. It is a modified cotyledon that is also found in the grass seed embryo. It is a thin cotyledon.

Step by step solution:
Scutellum is the name of the maize grain's cotyledon.
The scutellum assists in absorbing nutrients from the endosperm during germination despite its thinness and high surface area. It is an altered cotyledon of some sort. The scutellum has a diploid ploidy. A cotyledon, commonly referred to as "the embryonic leaf" in plants that produce seeds, is a crucial component of the embryo that is found in the seed of a plant. Species and types of plants may have different numbers of cotyledons.
Monocotyledonous species are those with a single cotyledon, and dicotyledonous plants are those with two cotyledons. Dicotyledons are also referred to as dicots, and monocotyledons as monocots. The cotyledon is a highly modified leaf made up of a scutellum and a coleoptile that is always present in grasses and many other monocotyledons. A form of seed tissue known as the scutellum is designed specifically to take up food that has been stored in the nearby endosperm. The plumule is shielded by the coleoptile, a protective cap. Plumule is seen as a forerunner to a plant's stem and leaves.

So, option C is correct.

Note: There are two distinct forms of cotyledons. either transient, lasting only a few days after emergence, or persistent, remaining on the plant for at least a year. As is well known, the cotyledons house the seed's food reserves. When these reserves are depleted, the cotyledons may turn green and begin photosynthesis or they may wither as the seedling's food production is taken over by the first true leaves.