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When a plasmolysed Spirogyra filament is put in water, the cell membrane will rehydrate and regain its original shape. The water will move into the cell through osmosis, causing the cell to become turgid again. This process is known as deplasmolysis, where the protoplast swells and pushes the cell membrane against the cell wall.
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Where do spirogyra live?
Spirogyra is a type of filamentous green algae that typically live in freshwater environments such as ponds, lakes, and slow-moving streams. They can be found attached to rocks, submerged vegetation, or floating freely in the water.
How does a spirogyra move?
Spirogyra is a non-motile organism, meaning it cannot actively move from one place to another. It typically remains anchored in place and relies on water currents for dispersal of gametes or spores.
A student wants to prepare a temporary mount of spirogyra Where should he search for a fresh specimen?
The student should search for a fresh specimen of spirogyra in ponds, lakes, or slow-moving streams where this green filamentous alga is commonly found. Look for clear water with good sunlight penetration, as spirogyra thrives in such environments.
What is a plasmolysed cell?
A plasmolysed cell is where the cell membrane has pulled away from the cell wall, resulting in the collapse of the cell. This usually occurs because the cell has been placed in a solution with a concentration of water lower then that inside the cell so the water has diffused through the semi-permeable membrane of the cell into the solution and the cell shrivels because it has no water.
How do spirogyra reproduce asexually?
Spirogyra reproduce asexually through fragmentation. The filaments break into smaller pieces, each of which can grow into a new individual. This process allows for rapid colonization and expansion by the spirogyra population.
What will happen if Plasmolysed Spirogyra filament is placed in water?
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How can can plasmolysis be demonstrated in the laboratory using a filament of spirogyra?
To demonstrate plasmolysis with a filament of spirogyra in the laboratory, place the filament in a hypertonic solution such as salt water. As water leaves the cell by osmosis, the cytoplasm shrinks away from the cell wall, leading to the detachment of the cytoplasm from the cell wall, demonstrating plasmolysis. This can be observed under a microscope.
what is a spirogyra?
spirogyra is a water silk
What is the function of akinates in spyrogyra?
Akinetes in Spirogyra serve as dormant cells that are formed during unfavorable conditions like extreme temperatures or nutrient scarcity. These akinetes can remain dormant until conditions improve, allowing Spirogyra to survive and reproduce when conditions are more favorable.
What is the movement of the spirogyra?
Spirogyra is an algae that is found in slow moving rivers and ponds. Spirogyra does not have any ability to move on it's own, and only moves as the water moves.
Why is spirogyra slimy to touch?
In spirogyra the outer cell wall is made up of pectin which dissolves in water and gives slimy appearance.
Where do spirogyra live?
Spirogyra is a type of filamentous green algae that typically live in freshwater environments such as ponds, lakes, and slow-moving streams. They can be found attached to rocks, submerged vegetation, or floating freely in the water.
Are spirogyra heterotrophs or autotrophs?
Spirogyra being a fresh water chlorophycean alga prepares its own food by photosynthesis. Hence it is an autotroph.
Can spirogyra live on a humid land?
Spirogyra is typically found in freshwater habitats like ponds and streams, where there is sufficient water for them to thrive. It is unlikely that Spirogyra would be able to survive on humid land because it requires a water medium to carry out its life processes like reproduction and photosynthesis.
What is the difference between a flaccid cell and plasmolised cell?
A flaccid cell has lost water and lacks turgor pressure, while a plasmolysed cell has lost so much water that the plasma membrane has detached from the cell wall. Flaccid cells are not necessarily plasmolysed, but plasmolysed cells are always flaccid.
How does a spirogyra move?
Spirogyra is a non-motile organism, meaning it cannot actively move from one place to another. It typically remains anchored in place and relies on water currents for dispersal of gametes or spores.
Can photosynthesis take place in spirogyra?
Yes, photosynthesis can take place in Spirogyra. Spirogyra is a filamentous green algae with chloroplasts that enable it to perform photosynthesis, converting sunlight into energy for growth and survival.
