Question

spirogyra differs from fucus as the former lacks​

Answer 1

Explanation:

• Spirogyra is a green algae while focus is a brown algae

• Both of them have chlorophyll but difference is Spirogya has type A and B while focus has type A and C

• Spirogyra stores food as starch and oil whereas focus stores food as  mannitol/ laminarin

• Focus is brown in color due to the presence of fucoxanthin which is lacking in spirogyra

Answer 2

The former differs from the later as it bears serrated edges while the latter bears small bladders which further helps in buoyancy.

Spirogyra:  

• It is a filamentous charophyte green algae.

• It has a spiral arrangement of the chloroplasts.

• It is a freshwater habitat.

• Around 400 species of Spirogyra are found in the world.

• It is an important source of antibiotic, antioxidant, antiviral and anti-inflammatory for humans.

• It is commonly called water silk, blanket weed or mermaid‘s tresses.

Fucus:

• It is a genus of brown algae.  

• Fucus is commonly known as rockweed.  

• It is majorly found in rocky seashores.

• It is useful in the preparation of medicines.

• Fucus vesiculosus helps to deal with conditions such as thyroid problem, obesity and iodine deficiency.