Question

Choose the correct statement about kelps.

• A. It is fresh water algae containing starch as stored food.
• B. It attains red colour due to the presence of phycoerythrin.
• C. It is a marine weed possessing fucoxanthin and carotenoids.
• D. The cell wall of kelp contains algin and pectin

Hint:

Kelps = Brown Algae = Marine + Fucoxanthin.

Answer 1

The Correct Option is C

Step 1: Concept
Kelps belong to the class Phaeophyceae, commonly known as brown algae.

Step 2: Meaning
They are characterized by being strictly marine organisms, often forming large "forests" in cold coastal waters.

Step 3: Analysis
The brown color of kelps is primarily due to the pigment fucoxanthin, which masks the green of chlorophyll $a$ and $c$, along with various carotenoids.

Step 4: Conclusion
Statement C accurately describes their habitat and pigmentation. Final Answer: (C)