Chapter 23, Problem 36A

Summary Introduction

To write:

The importance of radicle for the embryo.

Introduction:

Germination is the process through which the embryo in a seed starts to grow. Germination begins when a seed starts to absorb water. Seeds have an outer covering called seed coat which break open when water enters the cells of the seed.

Explanation of Solution

Once the seed has been softened by water, the embryo starts to emerge from the seed. The first structure to appear from the embryo is the radicle that begin to absorb nutrients and water from the environment. The radicle grows down into the soil and forms the plant's primary root. The appearance of the radicle helps the seed to plant itself firmly on the ground and take in water and nutrients.

Conclusion

The radicle develops into the root of the plant and absorbs water and nutrients from the environment.