Question

write a note on spirogyra

Answer 1

Spirogyra is a green algae belonging to the class chlorophyceae. The genus Spirogyra comprises more than 300 species and most of them are free floating algae. However, some species like S. rhizopus, S. dubia etc are found attached to substratum by the means of rhizoids.

There habitat:-
They are commonly found floating in fresh water resources like ponds, lake, ditches etc. and some are also found in slow running stream or river.

Structure:-
The vegetative structure or plant body is known as thallus. Thallus is a unbranched multicellular filamentous structure formed by arrangement of cylindrical cells head to head in a single row.

See the above attachment ⬆️

Answer 2

✌✌hey there , here's ur answer⚡⚡

➖SPIROGYRA➖

▶DIVISION: ALGAE

▶CLASS: CHLOROPHYCEAE

▶IT comprises of more than 300 species

▶They comprise of special storage organ called pyrenoids

▶attach to stratum by root like structure called rhizoids

▶ The vegetative structure of the plant body is known as THALLUS

▶ THALLUS is unbranched , multicellular and filamentous in nature.

▶REPRODUCTION:
1. VEGETATIVE REPRODUCTION: FRAGMENTATION

2. ASEXUAL REPRODUCTION:
1.AKINITE
2.APLANOSPORE
3.AZYGOSPORE

3. SEXUAL REPRODUCTION:
1. CONJUGATION BY ZYGOSPORE

✌✌hope it helps u