bio 112 lab test on angiosperms
Terms
undefined, object
copy deck
- 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