Question

Give any two identifying features of spirogyra.

Answer 1

1.Spirogyra is unbranched with cells connected end to end in long male reproductive system filaments. 
2.The cell wall has two layers: the outer wall is composed of pectin that dissolves in water to make the filament slimy to touch while the inner wall is of cellulose. 
3.The cytoplasm forms a thin lining between the cell wall and the large vacuole it surrounds. 
4.The chloroplasts are ribbon shaped, serrated or scalloped, and spirally arranged, resulting in the prominent and characteristic green spiral on each filament.

Answer 2

it's habitat is fresh water and it's chloroplasts arrange in helical structure..