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Protista
Plant like protists
20
Biology
Undergraduate 2
06/29/2007

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Term
Plant like protists
Definition
phylum pyrrophyta, chrysophyta, euglenophyt, chlorophyta, phaeophyta, rhodophyta
Term
Dinoflagellates
Definition
Pyrrophyta

cause Red tides-gymnodinium, gonyaulax
Term
Golden algae
Definition
Chrystophyta
Term
Diatoms
Definition
most abundant chrysophyta

unicellular of colonial

most of plant plankton

growth more than all land plants in weight
Term
Diatom characteristics
Definition
cell wall 2 halves of silica(like petri dish)

many move by raphe-slits in valves-produces a countercurrent, so they "glide"

store oil not starch
Term
Euglenoids
Definition
Euglenophyta

pigment like higher plants

do not store starch/have cellulose wall

move by flagellum, have pellicle
Term
pellicle
Definition
flexible protien inside membrane allows body body to change shape while moving
Term
Euglena Characteristics
Definition
flagellum, eyespot, pillice, nucleus, chloroplast
Term
Green algae
Definition
Chlorophyta
Term
Green Algae Characteristics
Definition
transparent cellulose wall

prominent vacuole

chlorophyll and carotenoid pigments like "higher plants"

have pyrenoids
Term
Pyrenoids
Definition
center of starch formation on cloroplasts in many algae
Term
Unicellular green algae protococcus
Definition
found on bark, plant pots, brick walls ,

reproduces only by cell division

likes moistness
Term
Colonial G.A.
Definition
spyrogyra, volvox
Term
spyrogyra reproduction
Definition
conjugation tubes
Term
Volvox
Definition
G.A. colonies from hundeads to thousands

asexual reproduction through daughter colonies

sexual repo through oogamy-advanced heterogamy
Term
multicellular G.A.
Definition
ulva( sea lettuce) clings to rocks

can repo. asexually by fragmentation
Term
Brown Algae
Definition
Phaeophyta

largest seeweeds up to 300 ft lenght

Sargassium, laminari
Term
Brown Algae characteristics
Definition
attach to solid surface-holdfast

stem like- stipe

leaf like- blade

have airbladders to float photosynthetic areas to light
Term
Red Algae
Definition
Rhodophyta

have chlorophyll and red and blue accessory pigments.
Term
Red algae characteristics
Definition
red and blue accesory pigmentation allow them to live deep in the water

there is no strong current so the bodies are fragile

many are eaten
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