UNIT 3  FLOWERING PLANTS REPRODUCTION

Flowering plants can be classified into gymnosperms and angiosperms.

• GYMNOSPERMS have small flowers but no fruit. Their seeds are all together in cones.
• ANGIOSPERMS have flowers and fruits.

 

SEXUAL REPRODUCTION IN PLANTS

The reproduction process is a cycle (no beginning no end).

Flowers are the reproductive organs in which pollen and ovules are formed. Polen and ovules mix in an act called pollination and the flower transforms into a fruit. Fruits contain the seeds. Seeds fall to the soil and germinate that is, a new plant can grow.

Flowers

Flowers generally are the showiest part of a plant. Their beauty and fragrance attract pollinators (insects or birds) that play an important role in the reproductive process.

If you want to play a question game about flowers, click on the picture.

 

Pollination

Pollination is the movement of pollen from the stamens to the ovary. It usually takes place in the same plant. However, wind and insects also carry pollen to other plants.

 

 

This is a simple video about pollination:

 

Fruit and seeds

Fruit is the fleshy structure of certain plants that may be sweet and edible in the raw state, such as apples, oranges, grapes etc. It also consists of seeds which are for propagation of plant. The seed contain food which supplies energy and materials for growth until the plant grows its first leaves above the ground.

 

 

Let´s see an interesting video about fruit development:

 

Do you want to see the germination of a seed? Watch this video:

 

A fantastic video filming the process from an acorn to an oak:

 

 







ASEXUAL REPRODUCTION IN PLANTS

Some plants reproduce without flowers or seeds.

 

 

Now, you can see a video about asexual reproduction in plants: