Question:
Air bladders are found in the following plant
Air bladders are found in the following plant
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Pneumatocysts or air bladders help algae like Fucus float and are absent in most other algae such as Polysiphonia.
Updated On: Jun 19, 2026
- Fucus
- Laminaria
- Dictyota
- Polysiphonia
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The Correct Option is A
Solution and Explanation
Step 1: Understand the function of air bladders.
Air bladders, also called pneumatocysts, are small gas-filled structures that help algae float in water, keeping the photosynthetic parts closer to the surface.
Step 2: Identify the plant group.
Fucus is a brown alga (Phaeophyceae) that contains air bladders.
Step 3: Analyze other options.
- Laminaria: Brown algae without prominent air bladders.
- Dictyota: Brown algae without air bladders.
- Polysiphonia: Red algae, does not have air bladders.
Step 4: Conclusion.
Therefore, air bladders are characteristic of Fucus.
Air bladders, also called pneumatocysts, are small gas-filled structures that help algae float in water, keeping the photosynthetic parts closer to the surface.
Step 2: Identify the plant group.
Fucus is a brown alga (Phaeophyceae) that contains air bladders.
Step 3: Analyze other options.
- Laminaria: Brown algae without prominent air bladders.
- Dictyota: Brown algae without air bladders.
- Polysiphonia: Red algae, does not have air bladders.
Step 4: Conclusion.
Therefore, air bladders are characteristic of Fucus.
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