In this IBDP Biology blog post we will be learning part 2 of how plants reproduce, let's get started!

Fertilization 

Fertilization: Fusion of a male gamete with a female gamete inside the ovule forming a zygote

1. Pollen grains (with male gametes) germinate on the stigma of flower

2. Pollen tube containing male gametes grows down the style to the ovary

3. Pollen tube delievers male gametes to an ovule (containing female gametes) which they fertilize

• Pollen germinates on stigma to produce a pollen tube which grows down the style
• Within the growing of the pollen tube there is the nucleus which will produce the spem
• The pollen tube completes its growth by entering an opening at the bottom of an ovary
• The sterm moves from the tube to combine with the egg of an ovule to form a zygote  

Seed Dispersal 

Seed Dispersal: Spreading of seeds away from the parent plant to sites where they germinate and grow without competition

• Fertilized ovules develop into seeds
• Ovaries containing fertilized ovules develop into fruits
• Function of fruits is seed dispersal  

That is all for part 2 of the processes of plant reproduction, well done!

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References:

• https://www.google.com/url?sa=i&url=http%3A%2F%2Fib.bioninja.com.au%2Fhigher-level%2Ftopic-9-plant-biology%2Funtitled-3%2Fplant-reproduction.html&psig=AOvVaw1lj6jHa5NHvXzQ9YD0p08b&ust=1627271330478000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCIjotZ-o_fECFQAAAAAdAAAAABAD
• https://www.google.com/url?sa=i&url=https%3A%2F%2Fthefactfactor.com%2Ffacts%2Fpure_science%2Fbiology%2Fbotany%2Ffertilization%2F11495%2F&psig=AOvVaw11ZzAydHCVlrntV4cxygG0&ust=1627271301188000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCKCGl7Oo_fECFQAAAAAdAAAAABAD

Drafted by Venetia (Biology)