cyanobacteria Flashcards
autotrophs
prokaryotic cells that produce their own food
how are cyanobacteria similar to chloroplasts
they have an inner/outer membrane, a stroma, thylakoids, and a cell wall made of peptidoglycan
main ability of cyanobacteria
nitrogen fixation
bacteria characteristics
no nuclear envelope, chromosome, no organelles, and no cytoplasm
peptidoglycan function
found in cell wall, makes bacteria gram positive
endosymbiotic theory
prokaryotic cell engulfs aerobic cell to form mitochondria, secondary endosymbiosis occurs with plant cells being engulfed
cyanobacteria function in plants
can be chloroplasts or symbiotes fixing nitrogen from atmosohere
cyanobacteria role in rise of oxygen in earth’s atmosphere
have played a major role
stromatolites
layers of sediment that accumulate due to being held by a mucus which is created by cyanobacteria
where does cyanobacteria bloom?
in aquatic environments where it pumps excess nitrogen
25 to 75 percent of cyanobacterial blooms are toxic, taking up oxygen and negatively affecting water quality and drinking water
heterocyst
functions in nitrogen fixation, has a thickened wall
akinete
oval shape