Flowering plants | Sunday Observer

Flowering plants

30 October, 2016

 

Life-cycle of a flowering plant

Flowering plants follow a specific life cycle.

1.Seed - They begin their lives as seeds. Seeds are like baby plants. They have a hard outer shell that protects the seed embryo inside.

2.Germination - The seed ends up on the ground. It needs air, water, and soil to grow. When a seed begins to grow, this is called germination. The first growth will usually be some small roots. Then stems will grow.

3.Sprout or seedling - When the first sign of life appears above the soil, this is called a sprout or seedling.

4.Mature plant - The seedling will continue to grow into a full mature plant with leaves, roots, and stems.

5.Flowering - The mature plant will grow flowers. Through pollination, the flowers will produce seeds. When the seeds end up on the ground, the cycle will begin again.

6.Note: Flowers are the reproductive organs of the flowering plant.

7.Fruit Fruits are a way which many plants spread their seeds. Fruits are formed after the flower is fertilized with pollen. The ovules in the pistil will become seeds and the flower will transform into a fruit.

8.Seed The seed is the embryo of a plant. Sort of like a baby plant. Seeds come in all sizes shapes and colours depending on the type of plant. Inside the seed is a plant embryo, food for the embryo, and a seed coat to protect it. Seeds may be dispersed by a number of ways including air, water, and animals.

Some seeds are light and have hairs or wings that help them to float in the air. Other seeds can float on the water and disperse by riding on rivers and streams. Still other seeds have tasty fruit that animals eat and then get dispersed in the animals’ droppings.

9.Pollination In order for an ovary to become a seed, it must receive pollen. Insects and birds can play an important role in pollinating plants. When an insect or bird is attracted to a flower by its bright colour, they get pollen on them. As they move from plant to plant, they move the pollen from one plant to another. This helps the plants to reproduce by creating seeds. 

 

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