Q:

What is the function of a seed coat?

A:

Quick Answer

A seed coat protects the internal parts of the seed from fungi, bacteria and insects and prevents water loss. The seed coat must split open before a new plant may emerge.

Continue Reading

Full Answer

The outer layer of the seed coat, called the testa, is generally hard and thick. The second layer of the seed coat, known as the tegmen, is softer. In some plants, the seed coat does not open unless environmental conditions are ideal for plant growth. This condition is known as dormancy. In many plants, the seed coat covers storage tissues. The embryonic plant uses these food reserves until it is able to emerge from the seed coat and make its own food.

Learn more about Outdoor Plants & Flowers

Related Questions

  • Q:

    What are the three parts of a seed?

    A:

    The three parts of a seed are the embryo, the endosperm and the seed coat. The embryo is a miniature form of the plant that is fed by the nutrition contained in the endosperm. The embryo is protected from the external environment by the seed coat.

    Full Answer >
    Filed Under:
  • Q:

    What refrigeration temperatures are required for storing flowers?

    A:

    Flowers should be stored in a refrigerator that is between 34 and 36 degrees Fahrenheit to reduce water loss. The appliance's relative humidity should be about 90 percent. Flowers must not be placed near fruit, which produces ethylene gas that causes blossoms to wilt.

    Full Answer >
  • Q:

    What is a sunken stomata?

    A:

    A sunken stomata is a stomata in a small pit, which protects the escaping water vapor from air currents, decreasing water loss from the leaf. Sunken stomata are commonly found in plants in arid environments as one of their adaptations to preserve water. Plants with sunken stomata often have fewer stomata in general than plants in moister environments.

    Full Answer >
  • Q:

    How does Daconil fungicide work?

    A:

    Daconil fungicide kills fungi by reducing molecules of the antioxidant glutathione inside fungal cells to unreactive forms that do not participate in essential biochemical reactions, which leads to the death of the fungal cells. Daconil's active ingredient is chlorothalonil, which is an organic, broad-spectrum fungicide that controls mold, mildew, bacteria and algae. It is also used as a pesticide, acaricide and wood protectant.

    Full Answer >

Explore