Three Main Parts of a Seed

Seeds contain everything they need to develop into adult plants.
••• Top Photo Corporation/Top Photo Group/Getty Images

The structure of a seed depends on whether it comes from a monocot or dicot plant. A monocot plant has a single seed leaf, which is typically thin and long -- same shape as the adult leaf. The two seed leaves, or cotyledons, of a dicot plant are typically rounded and fat. Wheat, oats and barley are monocots, while most garden plants -- such as annuals and perennials -- are dicots.

The Structure of Monocot and Dicot Seeds

A monocot seed is comprised of three main parts: the embryo, endosperm and seed coat. The embryo is what will mature into a fully grown plant if placed in the right conditions, while the endosperm is a food supply for the developing plant. The seed coating protects the seed from pathogens and insects. In dicot seeds, endosperm is slowly absorbed into the embryonic tissues during seed development. The embryos of both types of seed also have smaller parts that will develop into leaves, stems and roots.

Related Articles

Parts of a Rice Plant
Comparison of Ferns & Flowering Plants
The Difference Between Seeds and Spores
What Parts of a Flower Are Involved in Reproduction?
How is Fruit Formed in Plants?
5 Characteristics Common to All Seed Plants
Six Basic Parts of a Plant
Parts of Flowers & What They Do
How Do Plants With Spores Reproduce?
Kinds of Seed Plants
What Is the Difference Between a Spore & a Pollen Grain?
How Are Conifers & Ferns Different?
List of Seedless Vascular Plants
What Type of Bean Seeds to Use for a Science Experiment
How Does the Venus Flytrap Reproduce?
What Does a Zygote in Plants Develop Into?
How to Explain the Life Cycle of a Plant
Parts of a Fungus
What Advantages Do Seeds Have Over Spores?
Moths That Have Markings of a Cross on Wings

Dont Go!

We Have More Great Sciencing Articles!