Pre-Fertilization: Structure And Events
Chapter Name : Sexual Reproduction In Flowering Plants |
Sub Topic Code : 103_12_02_02_03 |
Topic Name : Pre-Fertilization: Structure And Events |
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Sub Topic Name : Pollination |
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Introduction
Pollination is the process where pollen are transferred to the female reproductive organ (stigma)
Pre-Requisites:
Both male and female gametes are developed in their respective organs, there is a need of bringing them together for fertilization
Activity:
See the diagrammatic presentation of the process
Real Life Question:
How does male gamete reach the female gamete for fertilization?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| autogamy geitonogamy xenogamy | Pollination in same flower Transfer of pollen grains to stigma of another flower of same plant Transfer of pollen grains to stigma of different plant |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Diagrammatic representation or slide show You may notice many insects or birds/bees roaming around the plants | To understand the process They help in pollination |
Places to visit :
Biology Laboratory; garden or plant nursery
Practical examples around us
| Examples | Explainations |
|---|---|
| Whenever a bee or any insect sits on flowers, it simply helps the flower for pollination |
What you learn in Theory:
How does pollination take place?
What you learn in Practice:
Understanding the contribution of pollinators in the process