Question

Study the following table which shows divisions of algae and their main characters, identify A, B, C and D

• A. A-Cellulose, pectin; B-Chlorophyll a, c, Fucoxanthin; C-Mannitol, Laminarin; D-Chlorophyll a, d, Phycoerythrin
• B. A-Cellulose, Algin; B-Phycoerythrin; C-Floridean starch; D-Fucoxanthin
• C. A-Polysulphate esters; B-Phycocyanin; C-Starch; D-Fucoxanthin
• D. A-Chitin, Algin; B-Carotene; C-Starch; D-Chlorophyll a, c, Fucoxanthin

Hint:

Pigment progression: Green: a + b Brown: a + c (+ Fucoxanthin) Red: a + d (+ Phycoerythrin)

Answer 1

The Correct Option is A

Step 1: Analyze Missing Data:

• A (Cell Wall of Green Algae): Typically composed of an inner layer of **Cellulose** and an outer layer of **Pectose/Pectin**.
• B (Pigments of Brown Algae): Chlorophyll a, c, and **Fucoxanthin** (gives brown colour).
• C (Stored Food of Brown Algae): Complex carbohydrates like **Laminarin** or **Mannitol**.
• D (Pigments of Red Algae): Chlorophyll a, d, and **Phycoerythrin** (gives red colour).

Step 2: Conclusion:
Option (A) accurately lists all these characteristics.