Algae And Protist Flashcards
Nostoc
Fresh water cyanobacteria
Colonies of filamentous organisms
Found in soil, on moist rocks, and at the bottom of fresh water lakes and springs
Is a symbiont with plants providing Nitrogen (NH4) to its host
Blue-Green Algae
Cyanobacteria
Spherical or filamentous cells surrounded by gelatinous sheath
Photosynthetic pigments
Nostoc
Anabaena
Rivularia
Gloeocapsa
Anabaena
Filamentous cyanobacteria
Found as plankton
Is a symbiont with plants providing Nitrogen (NH4) to its host
Rivularia
Filamentous cyanobacteria
Prefer clear fresh water
Some species prefer stagnant water
Gloeocapsa
Cyanobacteria
Recently divided cell pairs often appear to be only one cell since the new cells cohere temporarily
Green Algae
Division Chlorophyta
•photosynthetic
Oscillatoria
Oedogonium
Spirogyra
Volvox
Protococcus
Oscillatoria
Filamentous green algae
Filaments in the colonies can slide back and forth against each other until the whole mass is reoriented to its light source
Oscillatoria uses photosynthesis to survive and reproduce
Oedogonium
Filamentous green algae
Free floating when mature but can attach to plants
Thrives in quiet fresh water environments
Spirogyra
Filamentous green algae
Helically arranged chloroplasts
Found in freshwater
Develops into slimy filamentous green masses
In sunlight, produce large amounts of oxygen
Volvox
Division Chlorophyta
•green algae
•photosynthetic
Freshwater algae
Each mature volvox colony is composed of numerous flagellate cells
Up to 50,000 in total and embedded in the surface of a hollow sphere containing an extracellular matrix of gelatinous glycoprotein
Protococcus
The simples of all green algae
Mature plants are single spherical green cells, which occur in masses
