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Question

The function of cotyledons in dicots is to

A
protect the seed
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B
help in respiration
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C
store food for the embryo
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D
absorb water for the seed
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Solution

The correct option is C store food for the embryo
The function of the cotyledons is to provide nourishment for the developing embryo. The embryo grows into the plant. In several dicots, the food reserves in the endosperm are remobilized into the developing cotyledon which function as the storage tissues. Hence, the nourishment is provided by the cotyledons. In monocots, the cotyledon, which is also known as scutellum, absorbs the food released from the endosperm and transports it to the developing embryo.

The seed coat protects the seed. It is made up of the outer testa and inner tegmen. The testa is thick and the tegmen is thin and membranous.

The micropyle is a small opening that is found in the ovule and is retained in the seed after fertilization. Seeds absorb water through the micropyle. Micropyle also helps in the respiration or exchange of gases.

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