• Definition of Plant Reproduction:

  • Plant reproduction is the production of new individuals or offspring in plants, which can be accomplished by sexual or asexual reproduction. Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from the parent or parents.

 

Reproductive Parts:

• Carpel is female reproductive organ, anther is the male reproductive organ.

• Anther prduces the sperm (pollen).

• Stigma is the landing site for the pollen.

• The ovule contains the plant eggs.

• Sperm must travel from the stigma down to the ovule in order to fertilize the eggs.

• Filament is the shaft that holds the anthers up.

• Style is part of the carpel, between the stigma and the ovule.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of sexual reproduction in plants:

1. Sperm compete, tube is formed which uses enzymes to grow, nucleus moves down tube to create zygote (fertile egg), mitosis forms cells, cells differentiate.

2. Once egg is fertile, mitosis-leaves die, lose pedals, natural death, anthers fall/some anthers may stay, dead plant.

3. Dead plant-egg cell dividing, stigma shrivels, base swells.

4. Fruit is product of sexual reproduction in flowering plant.

5. Seeds mean fruit.  Seed it fertilized egg not used.  Cant plant seed to grow plant.  Only asexual reproduction can occur that way.

 

 

Sandner, L., & Ellis, C. (2011). Pearson investigating science BiologySource 11. Toronto: Pearson Education Canada.