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bio 112 lab test on angiosperms

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What are the 5 main characteristics of seeds and seed plants?
1. produce pollen grains 2.have food storage for embryos 3.all seeds have seed coat 4.exhibit alteration of generations 5.all seeds are hetero/homosporous produce 1 spore type
what does heterosporous mean
it produces 2 spore types
Conifers belong in what phylum
phylum coniferophyta
Pinus (pine) is an example of what
a conifer
in a conifer, how many microsporangia are in one microsporophyll
2
microsporangia is another word for what
pollen sacs
How many cells make up the pollen grains (=microsporangia) in conifers
4
What Does the megaspore mother cell(or megasporocyte) develop into in pines?
4 haploid megaspores
IN pines, what does the surviving megaspore develop into? Is it haploid or diploid?
female gametophyte haploid
In pines, where does the growing embryo get its nutrients from ?
Cotyledons
The tube cell will form the
pollen tube
The generative cell forms the
2 sperm
The male gametophyte in angiosperms and gymosperms are called
pollen grains
It is a tissue used to nourish the embryo sporophyte as it develops within the seed
endosperm
what will form the shoot system
epicotyl
what will form the root system
radicle
this produces flower and seeds during the first year (it completes the LC)
annual
How many ovules are found in the section of the ovary?
6
Grown vegetatively during the 1st year and produces seeds and flowers during the 2nd yr
biennial
plants that live several to many years
perennial
Where is the female gametophyte formation at
in the megasporangia
where is the male gametophyte ( pollen grain) formed at
in the microsporangia

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