Term
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Definition
| The diploid, 2n, generation of a plant. The spore producing plant |
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Term
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Definition
| The haploid,1n, generation. Gamete producing plant. |
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Term
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Definition
| cluster of sporangia found on the lower surface of the fern leaf |
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Term
| The lower surface of a fern is the _____ surface |
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Definition
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Term
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Definition
| ring or patch of cells that have thickened |
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Term
| Meiosis that occurs in sprangium gives rise to: |
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Definition
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Term
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Definition
| sex organ that produces the egg |
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Term
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Definition
| Sex organ that produces sperm |
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Term
| Sperm are a prodution of: |
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Definition
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Term
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Definition
One size spore
Plants are free sporing
Each spore germinates
Water is needed for live cycles
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Term
| Heterosporous plants have: |
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Definition
2 sizes of spore
free sporing plants
gametophytes are endosporic
Need water for fertilization
gametophyte growth in spore wall
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Term
| _______ and ______ are the spore types for Heterosporous plants: |
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Definition
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Term
| In heterosporous plants water is needed for: |
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Definition
Fertilization
release of sperm |
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Term
| In Homosporous plants water is needed for: |
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Definition
| Sperm to swim to egg, spore germination and gametophyte growth |
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Term
| Advantages of Heterospory: |
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Definition
Water not needed for gametophyte growth, or spore germination
Insures genetic recombination |
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Term
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Definition
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Term
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Definition
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Term
| Difference between Sprores and Pollen: |
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Definition
Plant the come from
# of cells
Germination location |
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Term
Pollen has only one cell
True or False |
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Definition
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Term
| Meiosis produces what in a microsporangium? |
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Definition
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Term
| What are the seed evolution steps: |
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Definition
| Homospory, heterospory, megasporangium surrouned by sterile telomes, free telome tips |
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Term
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Definition
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Term
| Seeds of angiosperms are contained in: |
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Definition
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Term
| What are some of the reproductive characters of angiosperms: |
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Definition
Carple encloses seeds
Double integument for seed
Has flowers
7-celled, 8 nucleate megagametophyte
3 celld microgametophyte
double fertilization
endosperm |
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Term
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Definition
| collective term for sepals & petals that look alike |
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Term
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Definition
| the chamber containing seeds |
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Term
| What is monosporic embryo sac development? |
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Definition
| after meiosis, 4 haploid megaspores are created and 3 abort and 1 divides and forms the megagametophyte. |
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Term
| A mature embryo sac contains: |
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Definition
Egg
2 snergids
3 antipodal cells
2 polar nuclei in central cell |
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Term
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Definition
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Term
| The main groups of steles: |
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Definition
Protosteles
Siphonosteles
Eusteles |
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Term
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Definition
| Haplosteles, actinostele, plectostele, medulated protostele |
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Term
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Definition
Solenostele
dictyostele
ectophloic
amphiphloic
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Term
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Definition
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Term
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Definition
| A tissure in the endodermis, recognized by the configuration of vascular tissue |
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Term
| Protostele has what characteristics: |
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Definition
| Core of xylem, no leaf gaps |
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Term
| Siphonostele has what characteristics: |
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Definition
| Hollow cylinder of xylem, has pith, has leaf gaps |
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Term
| Eustele has what characteristics: |
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Definition
| Xylem and phloem arranged as a ring of bundles. bundles form symopodia. Has a pith. No true leaf gaps |
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Term
| Solenostele has how many leaf gaps in a single cross section: |
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Definition
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