Question

In spirogyra filaments there are green, spiral shaped mitochondria

Answer 1

· Spirogyra filaments are slippery and float in large masses.

Answer 2

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These free-flowing, filamentous algae are characterized by ribbon-shaped chloroplasts that are arranged in a helical manner inside the cells.

So the name is derived from the spiral arrangement of chloroplasts in these algae.

Spirogyra has long, unbranched filaments with cylindrical cells that are connected end to end.