Spirogyra Flashcards
Spirogyra
It belongs to the family … and the order …
It is found … which forms … on …, … especially …, … and …
The attachment “….” is used for … on … by Spirogyra
Spirogyra
It belongs to the family Chlorophyceae and the order Conjualaes
It is found everywhere which forms filament on stagnant, fresh water especially ponds, ditches and streams.
The attachment “Hapteron” is used for anchorage on sea weeds by Spirogyra
Structure Of Spirogyra
The … filament is … and comprises of … of identical … joined .. to …
Its … is composed of .. and .. while its external … is enclosed by …, creating it …
…. is the … layer with …. of chloroplasts.
Nucleus is … at … by strands of …
Chloroplast has small … known as …
… are deposited around each ….
Structure Of Spirogyra
The mature filament is unbranched and comprises of single row of identical cylindrical cells joined end to end.
Its cell wall is composed of Cellulose and Pectin while its external cell wall is enclosed by mucilage, creating it shiny
Cytoplasm is the thin layer with spiral bands of chloroplasts.
Nucleus is suspended at centre by strands of cytoplasm
Chloroplast has small nodular protoplasmic bodies known as Pyrenoids. Starch grains are deposited around each pyrenoid
External Features Of Spirogyra
Ecological Adaptation
Algae range from … (….) to …(…) … forms creating in … of habitats approximately all over the …
Algae(which could be …., … or …) are sure to come out wherever there is …, … or … and …(though …).
Algae identify as …. when they grow together under …..
These …. so formed have their …. being found out by the … and … nature of ….
They serve as …
External Features Of Spirogyra
Ecological Adaptation
Algae range from unicellular (microscopic) to large(macroscopic) thalloid forms creating in diversity of habitats approximately all over the Earth’s surface.
Algae(which could be green, brown patch or yellow) are sure to come out wherever there is water, little moisture or water vapours and light(though feeble).
Algae identify as communities when they grow together under alike natural situations.
These communities so formed have their composition being found out by the physical and chemical nature of habitat.
They serve as Ecological Indicators
Importance Of Spirogyra
- Food for fresh water & marine organisms and supplies them Oxygen
- Controls water pollution
- Purification of sewage
- Fertilizers E.g Nitrogen Fixing Bacteria
- Biomonitoring agent
