Lab 3: Algae

algae

diverse eukaryotic photosynthetic microscopic/macroscopic organisms belonging to the Protista kingdom

algae differ from higher plants because they lack ___ and ___

well-organized tissues, certain reproductive mechanisms

algae are often found in what main locations?

aquatic areas with varying salinity, in soil, on surfaces, and in extreme conditions

Green Algae (Chlorophyta) are algae that are most closely related to what organism?

plants

Unicellular Algae include ___ and ___

Haematococcus and desmids (closterium and cosmarium)

Haematococcus algae are found in ___ and get their ___ pigment from ___

Bird baths, red, carotenoids

Desmids are organized in two ___ connected at the ___

Symmetrical semi-cells, isthmus

Closterium are desmids with ___ granules in vacuoles at the ___

Gypsum (calcium sulfate + H20), cell ends

Cosmarium are desmids made of ___

Two semi-circles

Flamentous Algae include ___

Magenta, stigeoclonium, and bulbochaete

Maugeotia are flamentous algae with plate like ___

Chloroplasts oriented at light sources

Stigeoclonium are flamentous algae that generally display ___

Branches

Bulbochaete are flamentous algae that has a ___ shaped terminal, and grows on ___

Bulbed, other algae

Colonial algae include

Volvox

Volvox are colonial algae with a ___ genus, forming ___ colonies of up to 50,000 cells

Polyphyletic, spherical

Tissue-like algae include

Ulvophyceae class (marine macroalgae [seaweed]) and charophyceae class (stoneworts)

Marine macroalgae (seaweed) can be membranous, such as ___, or coenocytic, such as ___

Ulva (sea lettuce), acetabularia (mermaid’s parasol)

Charophyceae include Stoneworts, such as ___ and ___

Chara, Nitella

Chara and Nitella are stoneworts that have complex ___ structures, and resemble ___

reproductive, green algae

Diatoms can be ___, which have ___ symmetry or ___, which have ___ symmetry

Pennate, bilateral, centric, radial

Red algae include

Chondrus crispus, polysiphonia, griffithsia, and porphyra

Brown algae includes ___, which are found in the ___ Ocean, and ___, which has air vesicles and ___ at the tips

Laminaria (kelp), Pacific, fucus, receptacles

flagellate mixotrophic protozoa include

euglena and astasia

what structures does euglena have?

flagella, gullet, chloroplasts, eye spots, and paramylum (food reserve)

Euglena can be photoautotrophic, or ____ if their chloroplast doesn’t develop

heterotrophic

dinoflagellates have 2 ___ for locomotion,

perpendicular flagella

dinoflagellates include ___, which are luminescent

noctiluca scintillans

cyanobacteria (blue-green algae)

prokaryotic photoautotrophic bacteria

cyanobacteria include ___, which are long filamentous and move via a gliding motion, ___, which form gelatinous balls and adhere to plants, and ___, which are small round cells with various pigments

oscillatoria, nostoc, and microcrystis