Question

Phycoerythrin and Floridean starch is found in

• A. Red algae
• B. Blue – green algae
• C. Green algae
• D. Brown algae

Answer 1

The Correct Option is A

The correct answer is:

Option 1: Red algae

Explanation:

Phycoerythrin is a red pigment found in red algae (Rhodophyta), which gives them their characteristic color.

Floridean starch is the storage polysaccharide found in red algae, similar to how starch is used by plants.

The other options are incorrect because:

Blue-green algae (Option 2), also known as cyanobacteria, do not contain phycoerythrin or floridean starch. They use phycocyanin as a pigment.

Green algae (Option 3) contain chlorophyll a and b, but not phycoerythrin or floridean starch.

Brown algae (Option 4) contain fucoxanthin as their primary pigment and store energy as laminarin, not floridean starch.

Thus, phycoerythrin and floridean starch are characteristic of red algae.

Answer 2

Red algae, also known as Rhodophyta, are a group of algae that typically exhibit a red or purplish color due to the presence of pigments such as phycoerythrin. Phycoerythrin is a red pigment that helps red algae absorb light for photosynthesis.

Floridean starch is a type of storage carbohydrate found in red algae. It is a unique form of starch that differs from the starch found in other algae and plants.

Therefore, the correct answer is (A) Red algae.