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48 Cards in this Set
- Front
- Back
General Characteristics |
Multicellular, Temperate, Mostly Marine |
|
Chlorophyll |
a, c1,c2,c3 |
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PIgments |
Fucoxanthin, Neofucoxanthin, B carotene, Chloroplast, Physodes |
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Chloroplast |
Thylakoids arranged in 3 bands w/girdling lamella, stalked pyrenoids, covered by CER |
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Function of Physodes |
filtering sunlight, antifoulants, wound plug development |
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Tannins |
Phlorotannins |
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Tannins Function |
Protection from UV light, may discourage grazing |
|
Storage Products |
Laminarin or Chrysolaminarin, Mannitol |
|
Laminarin and Chrysolaminarin |
Found surrounding large single stalked pyrenoid |
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Mannitol |
low molecular sugar alcohol |
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Mannitol Function |
reserve food and osmoticant |
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_____ cell wall with microfibrils arranged in alternating lamellae |
celluose |
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_____ are common & penetrate cell wall in well defined pit fields |
Plasmodesmata |
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Algin & Alginic Acid Functions |
cementing agent, ion exchange roles, extracted as phycocolloid |
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Extracted as phycocolloid- ______ |
Fucoidan |
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Flagella are: ______ |
Heterkontous |
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Heterkontous |
unequal in length and morphology |
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_____ _____ into an ellipsoid to a dorsiventrally flattened monad |
laterally inserted |
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____ either isomorphic or heteromorphic |
Haplodiplontic |
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______ generation is usually reduced in most heteromorphic life histories |
Gametophytic |
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Reproduction occurs in two types of structures: ______ sporangia or ______ sporangia |
Plurilocular , Unilocular |
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Plurilocular Organ |
multicellular organ in which each cell produces a single motile cell |
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In Plurilocular Organ structures derived by _____ divisions |
mitotic |
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Plurilocular organ function |
haploid gametangium or zoosporangia |
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_____ development of unfused gametes may also occur |
Partehnogenic |
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Unilocular Sporangium |
single cell, usually spherical and enlarged, site of meiosis |
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Unilocular Sporangium may be released as: |
non-motile tetraspores or haploid nuclei |
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Types of Growth (4) |
Diffuse, Apical, Trichothalic, Meristodermic |
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generalized not localized growth |
Diffuse Growth |
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cell divisions are localized at base of one or more filaments |
Trichothalic Growth |
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single apical cell, groups of apical cells or marginal cells cut off segments proximally |
Apical Growth |
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layer of superficial meristematic cells divide and add cells centripetally to thallus |
Meristodermic Growth |
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Phaeophyta Members lack multicellular _____ & embryos and _____ |
sex organs , chlorophyll b |
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ability of cells to divide in various planes to effect a true tissue |
Polystichous form |
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Thallus form may change in response to a variation in such factors as: _____, _____, _____ & ____ |
irradiance, water movement, temperature, salinity |
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How do you determine the orders: ____, _____, ____ |
Life cycle type, thallus construction, meristematic growth type |
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Life Cycle Types (3) |
Isomorphic, heteromorphic, no free living haploid stage |
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Thallus Construction (3) |
filamentous, pseudoparenchymatous, parenchymatous |
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Life history of this order is an Alternation of Isomorphic Generations |
Order Ectocarpales |
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This order has a life history of Isomorphic and isogamous |
Order Chordariales |
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This order is filamentous to pseudoparenchymatous |
Order Chordariales |
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This order is haplodiplontic with gametophytic and sporophytic phases |
Order Chordariales |
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This order has a life history that is diplohaplontic in which sporophyte is reduced |
Order Scytosiphonales |
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This order has a Isomorphic haplodiplontic life history |
Order Dictyotales |
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This orders gametophytes are dioecious and sexual reproduction is oogamous |
Order Dictyotales |
|
This is order is the sargassum order |
Order Fucales |
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This order has a diplontic life history & exhibit a pronounced oogamous reproduction with a unique sperm |
Order Fucales |
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This order has plant construction that is complex with a holdfast, stipe & blade, may also have floats |
Order Fucales |