Marine bio lab midterm

Akinete

Cells used to achieve dormancy

Heterocyst

Specialized cells for nitrogen fixation

Trichome

Cells held together and protected by a polysaccharide sheath

Unbranched filament

Linear chain of cells that don’t split into side branches

Domain of cyanobacteria

Bacteria

phylum of anabaena

cyanobacteria

genus of cyanobacteria

anabaena

What domain are diatoms in

Eukarya

What phylum is Diatoms in

Bacillariophyta

What class are diatoms in

bacillariophyceae

What is the difference between valve and theca

Valve is the top or bottom plate of the structure while theca is the entire structural half of shell

Frustule

Hard cell wall made of silica

Chloroplast

Converted sunlight into chemical energy through photosynthesis

Epitheca

Larger outer half of frustule

Hypotheca

Smaller inner half that fits inside

Auxospore

Dormant resting stage

Reproduction in Diatoms

Parental halves always form larger half of new cell