PLANT REPRODUCTION

Plants Reproductive Structures Cones: Gymnosperms –Female cones contain the ovules which contains the egg cell –Male cones contain pollen which are like sperm cells Flowers: Angiosperms –Pistil: female part of flower –Stamen: Male part of flower

Pollination Insects visit flowers to search for nectar – their food. But the flowers use the insects for their own purposes!

As the insect probes for nectar, its body rubs against the stamens. Pollen gets stuck on the insect’s legs. You can often see bees with a heavy load of yellow pollen on their hind legs.

Pollination When the insect visits another flower of the same type, the pollen will stick to the pistal. This is called pollination.

Fertilization The pollen travels to the ovary, where it joins with an ovule. This is called fertilization.

Seeds Seeds: the fertilized egg Seed Structure: –Seed coat: protects plant –Young plant –stored food

Types of Seeds

Seeds The seeds develop inside the ovary, which grows to become the seed pod or fruit.

Seed Dispersal The seeds are dispersed by: –Animals –Wind –Explosion –Water

Germination If the seed lands in a suitable place, it will germinate, and grow into a new plant. Then the cycle starts all over again.

Write these words in the boxes: germination, fertilization, pollination, seed dispersal, parent plant, plant growth

Write the correct words in the boxes: stamen, stigma, petals, ovary, ovules, pollen, sepals, anther. The male part of the flower This is where pollen is made Insects carry this from flower to flower These attract insects 1 This is the female part of the flower, which receives the pollen 2 These become seeds after fertilization 5 This is where the seeds will grow 4 These protect the flower before it opens 6