Pollination, Fruits & Seeds
What is pollination?
transfer of pollen grains from the anther to the stigma
What is seed dispersal?
Seed dispersal is the movement of seeds away from the parent plant.
What is the main difference between flowering and non-flowering plants?
Flowering plants produce flowers, while non-flowering plants do not produce flowers.
What is germination, and what happens when a seed begins to germinate?
Germination is the process by which a seed begins to grow into a new plant. The root grows first, followed by the shoot.
Differentiate between self-pollination and cross-pollination.
Self-pollination: Transfer in the same flower.
Cross-pollination: Pollen is transferred from a flower on one plant to a flower on another plant of the same species.
Why is it important for plants?
It helps plants grow in new places, reduces competition for sunlight, water, and nutrients, and allows plants to spread to different areas.
Give three examples of flowering plants?
Rose, sunflower, mango tree, etc..
What are the three main conditions needed for a seed to germinate?
Seeds need water, oxygen (air), and a suitable temperature (warmth) to germinate.
How do insects and other animals help in pollination?
Insects and other animals carry pollen from one flower to another while collecting nectar or pollen.
How are seeds spread when birds eat fruits?
Birds carry seeds to other places and spread them through their droppings.
Give three examples of non-flowering plants.
Fern, moss, pine tree..
Why do seeds need water to germinate?
Water softens the seed coat and activates the seed to begin growing.
What happens to a flower after successful fertilisation?
After fertilisation, the ovary develops into a fruit, while the ovules develop into seeds.
Describe three ways seeds can be dispersed. Give one example of a plant for each method.
Wind: Light seeds with wings or hairs are carried by the wind. Example: dandelion.
Water: Seeds or fruits float and are carried by water. Example: coconut.
Animals: Animals carry seeds on their bodies or spread them after eating fruits. Example: mango.
Why are flowers important to flowering plants?
Flowers are the reproductive parts of flowering plants. They help plants produce seeds, which can grow into new plants.
What might happen if a seed does not get enough warmth or water?
The seed may not germinate or may germinate very slowly.