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26 Cards in this Set
- Front
- Back
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Name the female organs |
Stigma, style and ovary |
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What forms the calyx ? |
sepals |
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What forms the corolla |
Petals |
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Name the male organs of a flower |
a) anther b) filament |
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What's the function of the ovary |
Its used to store the ovules and grows into a fruit |
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Function of the ovulr |
It contains female gametes |
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Function of the stigma |
To receive pollen |
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Function of the anther |
To produce pollen |
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Name the two types of pollination |
I. Self pollination ii. Cross pollination |
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What's pollination |
It's the process by which pollen is transferred from the anther to the stigma of a flower |
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What's is self pollination |
Its when pollination occurs on the same plant |
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What's cross pollination |
Its when pollen goes from the anther to the stigma of a flower on another plant of the same species |
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Characteristics of insect pollinated plants |
Pollen grains carried by insects may have spiky surface that helps them stick to the hairs on the insects body |
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Characteristics of wind pollinated plant? |
They are small and light so they can travel easily on air currents |
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Agents of pollination |
Insects, wind and animals |
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Advantage of pollination |
It helps pamys make fruits which help feed animals |
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Difference between wind pollinated and insect pollinated |
Wind pollinated: a) doesn't have colorful petals b) they are smaller than insect pollinated c) they don't produce nectar Insect pollinated a) they have large colorful petals b) they produce a scent to attract insects c) they produce nectar |
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Explain the process of fertilization |
In the stigma, a pollen grain it breaks open and forms a pollen tube which runs in the style down the ovary. This pollen grain moves through the pollen tube and when it reaches the ovary it fuses with the ovules. |
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What's is fertilization |
It occurs when pollen grains land on the stigma |
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What occurs after fertilization |
ovule develops into a seed. Each seed contains a tiny, undeveloped plant called an embryo. Best AnswerStamen - drops offPetal - drops off Ovary - thickens and enlarges to form the fruit Sepal - often dries up and stays attached Ovule - becomes the seed |
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What's dispersal |
Its the scattering of seeds always from the parent plant |
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Agents of dispersal |
Water Wind Animals |
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Characteris if animal dispersed fruits |
-they have a sticky surface to be attached - sweet smell -hards coating to resist digestive fruits |
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Characteris of wind dispersed fruits wind dispersed fruits |
-they are light - aren't edible - have hair like structures that's acts likes a parachute to help flow with the wind |
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Label the parts |
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Label the parts |
Nn |
