2. Cellular organization
1. unicellular
2. filamentous: chains of
cells attached end to
end
3. colonial: groups of
algae attached to each
other in
nonfilamentous
manner
6. syngamy
• pairing and fusion of
morphologically similar
haploid gametes to
form a diploid zygote
7. Spirogyra
• Spirogyra
• Spirogyra is a genus of
filamentous green algae
of the order
Zygnematales, named for
the helical or spiral
arrangement of the
chloroplasts that is
diagnostic of the genus.
Scientific name: Spirogyra
• Rank: Genus
• Higher classification:
Zygnemataceae