Flower parts
Which part of the flower is often brightly coloured to attract pollinators?
Petals
What is the name of the seed coat that protects the seed before germination?
Testa
Why do pollinators visit flowers?
To access food (nectar or pollen)
What is the purpose of a fruit?
To spread (disperse) seeds
Define germination
When a seed starts to grow
Which part of the flower produces pollen?
Anther
What is the name of the embryo root inside the seed?
Radicle
Define pollination
Transfer of pollen from anther to stigma
The fruit of kākābeak is a pod that dries out and splits open, revealing a large number of very tiny seeds. How are these seeds likely to be spread?
Wind
What is the first part of the plant embryo to emerge from a germinating seed?
The radicle
Name the three female parts that make up a carpel
Stigma, style, ovary
Which part of the flower develops into a seed?
Ovule
Give a disadvantage of using wind pollination
Random
Unreliable
Must produce lots of pollen
Animals (edible)
Animals (hooks)
Water
Wind
Explosive
What are 3 factors that a seed needs to germinate
Oxygen
Warmth
Water
Which part of the flower does the pollen tube grow down to reach the ovary?
Style
Which part of the flower develops into a fruit?
Ovary
Give 3 features of a flower that would be pollinated by birds and bees
Brightly coloured
Sweet scents
Nectar reward
Large
Give 3 features of a fruit that would rely on animal dispersal
Brightly coloured
Juicy
Why do the cotyledons shrivel and fall off as the seedling grows?
Because the food stores have been used up
Because the plant now has true leaves to make food
Which part of the flower is bright red in pōhutukawa?
Accept stamen or filament
Which part of a seed has food (starch) stored?
Cotyledons
Give one advantage and one disadvantage of animal pollination
Pollinators move directly from flower to flower (more reliable/consistent)
High energy cost (to produce colour, nectar, scent)
Why do plants need to disperse their seeds away from the parent plant?
To ensure that the seed has access to the requirements for germination and growth
To find new habitats
Place these in the correct order:
Seed dispersal
Pollination
Germination
Fertilisation
Pollination, Fertilisation, Seed dispersal, Germination