Plant reproduction and Fertilisation Flashcards
Why are flowers important for reproduction of plants?
Flowers are important for sexual reproduction by plants. They produce male sex cells and female sex cells.
What are Stamens?
Stamens are the male parts of a flower (each consists of an anther held up on a filament)
What do Anthers do?
Anthers produce male sex cells (pollen grains)
What is Stigma?
The top of the female part of the flower which collects pollen grains
What does Ovary do?
Produces the female sex cells (contained in the ovules)
What do Pollen grains need to do during a plant’s sexual reproduction?
During plant reproduction, pollen grains need to move from the anther of one flower to the stigma of another flower.
What does the Pollen tube do?
A pollen tube grows through the tissues of the flower until it reaches an ovule
What happens during fertilization?
. The nucleus of the pollen grain (the male gamete) then passes along the pollen tube and joins with the nucleus of the ovule (the female gamete). This process is called fertilization.
What happens after fertilization?
After fertilization, the fertilized egg cell develops into an embryo. The female parts of a flower develop into a fruit
.The ovules become seeds.
.The ovary wall becomes the rest of the fruit.
