How is food stored in brown algae?

The correct answer is Option (2)- In the form of complex carbohydrates that may be in the form of laminarin or mannitol

Brown algae store food in the form of complex carbohydrates, which may be in the form of laminarin or mannitol.

Explanation:

• Brown algae are photosynthetic organisms, and they produce food through photosynthesis using chlorophyll and other pigments.
• The storage of excess food in brown algae occurs in the form of complex carbohydrates, and two common storage products are laminarin (a polysaccharide) and mannitol (a sugar alcohol).
• These carbohydrates serve as energy reserves for the brown algae, providing them with a source of sustenance during periods when photosynthesis may be limited.

So, the correct answer is In the form of complex carbohydrates that may be in the form of laminarin or mannitol.