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Primordium
________ develops into a bud at the end of a stalk called the** pedice** l.
Ovule
________ and protective tissue are the ovary.
Pedicel
________ expands at the tip to form a receptacle, to which other parts attach.
Female cones
________ usually take 2 or more seasons to mature.
Megasporangium
________ divide meiotically inside ovule to produce haploid megaspore.
Protects
________ and provides food for embryo.
Germination
________ can not take place until water and oxygen reach the embryo.
Bananas
________ are propagated asexually.
Megaspore
________ produces egg that combines with sperm to form zygote.
Antipodals
________ are the 3 cells at the other end- they have no function.
Conifers
________ are sources of important products.
meristems
In many angiosperms, development of the embryo is arrested soon after ________ and cotyledons differentiate.
haploid nuclei
The 8 ________ in 7 cells make up the female gametophyte.
Pollen production
________ occurs in the anthers.
ovary wall
The ________ is termed the pericarp.
Integuments
________ develop into a relatively impermeable seed coat.
Female gametophyte
________ has archegonia at the micropylar end.
fungal attacks
Leaves have canals with resin to deter insect and ________.
nucellus
The ________ is surrounded by the integument.
Micropyle
________: small opening at end of integument.
Fruits
________ contain 3 genotypes in 1 package.
Flower parts
________ are organized in circles called whorls.
emergence of angiosperms
The ________ changed the terrain of Earth.
Diploid microspore
________ mother cells undergo meiosis to produce 4 haploid microspores.
Ovules
________ are enclosed in diploid tissue at the time of pollination.
Female cones
________ can weigh 45kg.
Female cones
________ are larger and have woody scales.
Coastal redwood
Tallest living vascular plant
Bristlecone pine
Oldest living tree
Micropyle
small opening at end of integument
Outermost whorl
sepals
Second whorl
petals
Third whorl
stamens
Innermost whorl
Pistil (aka Carpel)
Ovary
swollen base containing ovules
Stigma
tip where pollen lands
Style
neck or stalk
Function as polar nuclei
may fuse
Antipodals are the 3 cells at the other end
they have no function
3 layers
exocarp, mesocarp and endocarp
