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Chp. 29 Plant Diversity
wcjc- Lanom
27
Biology
Undergraduate 1
03/18/2013

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Term
Alteration of Generations
Definition
plants alternate between 2 multicellular stages and reproductive cycles
Term
Embryophytes
Definition
land plants dependency of the embryo of parent
Term
sporangia
Definition
organ where sporophyte produce spores
Term
sporocytes
Definition
diploid cells undergo meiosis to generate haploid spores
Term
gametangia
Definition
organ where the gametes are produced
Term
archegonia
Definition
female gametangia. egg and site of fertilization
Term
antheridia
Definition
male gametangia and produce and release sperm
Term
apical meristem
Definition
location where plants maintain growth
Term
bryophytes
Definition
non-vascular plants
Term
lycophytes
Definition
club mossteses with relative
Term
pterophytes
Definition
ferns with relatives
Term
seed
Definition
embryo/nutrients surrounded with protective coat
Term
gymnosperms
Definition
"naked seed" conifers
Term
angiosperms
Definition
"vessel seed" flowering plants
Term
Rhizoids
Definition
anchor gametophytes to substrate
Term
mature antheridia
Definition
flagellated sperm
Term
mature archegonia
Definition
egg
Term
sporophytes consists of?
Definition
foot, seta(stalk), sporangium/capsule
Term
roots
Definition
anchor vascular plants and absorbs H2O and nutrients from soil
Term
leaves
Definition
increased surface area to capture more sunlight
Term
sporophylls
Definition
modified leaves with sporangia-think of ferns
Term
sori
Definition
clusters of sporangia on underside of sporophylls
Term
strobilli
Definition
cone like structures formed from group of sporophylls
Term
homosporous
Definition
only 1 type of spore is developed-usually found in seedless vascular plants
Term
heterosporous
Definition
produces 2 types of spores: megaspores and microspores
Term
Megaspores
Definition
type of heterospore-female gametophyte
Term
Microspore
Definition
type of heterspore-male gametophyte
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