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Chapter 27

biol 130 exam 3

TermDefinition
pollen male gametophyte, no need for water
seeds embryonic sporophyte, food supply, productive outer coat
secondary growth produces the earliest seed plants had thickened woody stems
ginkgo one species
cyads restricted to warm climates
conifers cone bearing, cool climates
megastrobius female, seed-bearing cone
angiosperms covered seed, flowering
flowers attracts pollinators to increase successful transfer of pollen
fruits increase dispersal of seeds
broad leaves captures more sunlight
pollen grain male gametophyte
integument tough outer protective layer
ovule develops into a seed after fertilization
pollenation when a pollen grain lands near a female gametophyte
pollen tube digests its way through the sporophyte
vessel elements specialized for water transport
fiber cells important in supporting plant body
stamens bear microsporangia
carpels bear megasporangia
pistil includes stigma, style, and ovary
petals collectively the corolla
sepals collectively the calyx
perfect flower have both mega- and microsporangia
imperfect flower has either mega- or microsporangia
monoecious "one housed", male, female, and perfect flowers occur on one pants
dioecious "two housed", male and female flowers on different plants
tepals undifferentiated petals and sepals
double ferilization two male gametes participate in fertilization
simple fruit developed from one carpel (plum)
aggregate fruits developed from several carpels (raspberry)
multiple fruits forms from a cluster of flowers (pineapple)
accessory fruits developed from parts other than carpels (apple)
monocots one cotyledon
dicots 2 cotyledons
Created by: acatherine04
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