Hilum is the scar on seed coat through which the developing seeds were attached to the fruit.

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Study for the Morphology of Flowering Plants Test. Enhance your understanding with multiple-choice questions, complete with explanations. Prepare for your exam!

Multiple Choice

Hilum is the scar on seed coat through which the developing seeds were attached to the fruit.

Explanation:
The main idea here is that the hilum is the scar left on the seed coat where the seed was attached to the ovule via the funicle. As the seed develops, it remains connected to the parent plant through the funicle; when the seed matures and detaches, that connection leaves a visible mark—the hilum—on the seed coat. This makes the hilum the exact structure described in the statement. Aleurone layer is the nutrient-rich outer layer of the endosperm, not a scar. Endosperm is the tissue that provides nourishment to the developing embryo, also not related to a scar or attachment mark.

The main idea here is that the hilum is the scar left on the seed coat where the seed was attached to the ovule via the funicle. As the seed develops, it remains connected to the parent plant through the funicle; when the seed matures and detaches, that connection leaves a visible mark—the hilum—on the seed coat. This makes the hilum the exact structure described in the statement.

Aleurone layer is the nutrient-rich outer layer of the endosperm, not a scar. Endosperm is the tissue that provides nourishment to the developing embryo, also not related to a scar or attachment mark.

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