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15 terms

flower structure and reproduction

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angiosperm
plants that bear flowers and fruits
receptacle
part of branch on which a flower forms
sepals
leaf like - surround/protect flower before it blooms, modified leaves, under ovary
petals
colorful part to attract insects - even mice birds and bats
methods of pollination
carried by insects or animals, or wind
stamens
MALE: anther (produces pollen)
filiment (supports the anther)
carpels
FEMALE: fused together to form a pistil, which has three parts
stigma
sticky, where pollen attackes
style
long tube attaches stigma to ovary - sperm travels down it!
ovary
ovules stored here - until fertilized
can only fertilize same species - sepcial chemical to prevent it!
self-fertilization
pollen from anther fertilizes eggs on same flower
cross-fertilization
pollen is transferred to the stigma of an entirely different plant
seed
fertilized ovules - develop into fruit
fruit
any structure that encloses and protects a seed
petals fall off, ovary is left behid, develops into fruit
sexual reproduction
pollen - anther to stigma