Reproduction in Plants

REPRODUCTION IN PLANTS

INTRODUCTION

In this topic, we are going to learn about reproduction in plants as well as the different parts of a flower.

 

CONTENT.

By the end of the class, pupils should be able to draw a flower and define the term pollination.

 

WHAT IS REPRODUCTION IN PLANT?

Plant reproduction is the production of new offspring in plants or plant reproduction is the process by which plants grow new offspring.

 

HOW DO PLANTS UNDERGO REPRODUCTION?

 

Plants can undergo two kinds of reproduction:

  1. Asexual Reproduction,
  2. Sexual Reproduction.

In this section, we will only study sexual Reproduction.

 

WHAT IS SEXUAL REPRODUCTION?

 

To reproduce sexually, plants have both male and female reproductive organs in their flowers. The male part is called Stamen and the female part is called the carpel.

 

WHAT IS THE FUNCTION OF A STAMEN?

 

  • The Stamen is the pollen producing part of the flower found only In the male.
  • It consists of the anther and filament
  • The anther produces pollen grains
  • It is also responsible for reproduction.

 

WHAT IS THE FUNCTION OF A PISTIL?

 

  • The female part is called pistil. A pistil is the innermost part of a flower.
  • The top part of a petal is called a stigma.
  • The stigma is supported by the style and the ovary
  • The Ovary of a flower contains an ovule.
  • Each ovule contains a female gamete, which is fertilized by the male gamete.

 

DIAGRAM OF A FLOWER

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WHAT IS POLLEN AND POLLINATION?

Pollination may occur by either wind or water. To reproduce sexually, pollen from the male part is transferred to the female part by air or other flying animals, where fertilization occurs to form a seed. This seed will germinate and grow to become a new plant.

There are two types of pollination namely:

  1. Self-Pollination – This fertilization is with the same flower.
  2. Cross Pollination – This happens when pollen from one flower travels to fertilize the seed of another flower.

EVALUATION

What is pollination?

Which parts of the flower are responsible for sexual Reproduction?

 

SUMMARY

  • Reproduction in plants is the ability of a flower to produce seed and germinate to form new plants.
  • Sexual reproduction is done in order to produce offspring by the fusion of gametes.
  • Plant reproduction is the genetic differences between the parent and offspring.
  • Sexual reproduction in Plants can only occur when the male and female gamete comes together.
  • The most common form of pollination is by wind or animals.

 

ASSIGNMENT

Draw and label the reproductive parts of a flower.

 

REFERENCE

http://www.biologyreference.com/Re-Se/Reproduction-in-Plants.html#ixzz6O9ENCCqQ

https://mocomi.com/reproduction-in-plants/

                

 

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