Multicultural organisms Flashcards
State the uses of different plants.
Oils Wood- chairs Perfumes Medicine Converts CO2 into O2 Decoration Food - animals/ humans Make up products Bio fuel
Petal
to attract specific pollinators to the flower.
Stamen
The male parts of the flower
Sepal
Protect the unopened flower
Ovary
Produces the female sex cells (contained in the ovules)
Stigma
The top of the female part of the flower which collects pollen grains
Anther
Produce male sex cells (pollen grains)
Nectary
Produce a sugary solution called nectar, which attracts insects
Style
the tube-like structure that holds up the stigma.
Ovule
the organ that forms the seeds of flowering plants.
Filament
The filament holds the anther up
Describe the steps in pollination
After pollen has landed on the stigma, it grows a pollen tube down through the style to the ovary.
Describe the differences in appearance a number of sex has produced between insect and wind pollinated plants.
Insect pollinated plants are large and brightly coloured to attract insects and they usually are scented with nectar there pollen grains are moderate And the pollen is sticky or spiky anthers are inside of the flower and so is the stigma in Wind pollinated plants the petals are often small dull colours like green or brown there’s no sent to the flowers the number of pollen produced are very large amount of pollen grains are smooth and light the anthers are outside of the flowers and so is the stigma.
Describe the steps in fertilisation
plant fertilization is the joining of male and female sex cell, resulting in a zygote.
Embryo
Becomes plant
