Which term refers to the inner layer of the seed coat?

Which term refers to the inner layer of the seed coat?

• A. Tegmen
• B. Testa
• C. Endosperm
• D. Aleurone Layer

Answer: (A)

The inner layer of the seed coat is the tegmen. In seed anatomy, the seed coat (testa) is made up of two integuments: the outer integument forms the outer part, while the inner integument becomes the tegmen, the layer closest to the seed interior. The term testa refers to the seed coat as a whole or its outer part, not specifically the inner layer. The endosperm is the nutritive tissue inside the seed, and the aleurone layer is a layer within the endosperm that stores nutrients and enzymes. So the tegmen is the inner protective layer of the seed coat.

The inner layer of the seed coat is the tegmen. In seed anatomy, the seed coat (testa) is made up of two integuments: the outer integument forms the outer part, while the inner integument becomes the tegmen, the layer closest to the seed interior. The term testa refers to the seed coat as a whole or its outer part, not specifically the inner layer. The endosperm is the nutritive tissue inside the seed, and the aleurone layer is a layer within the endosperm that stores nutrients and enzymes. So the tegmen is the inner protective layer of the seed coat.