Question

The main purpose that the aerenchyma serves in Parenchyma is ____.

• A. Offers flexibility
• B. Renders Buoyancy
• C. Provides structural framework
• D. Provides mechanical support

Hint:

To connect the word to its function, look at the name: "Aer-" stands for Air. The tissue acts exactly like a built-in life jacket or swim bladder filled with air, keeping the aquatic plant floating effortlessly.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Parenchyma cells can adapt their internal spacing and structure to match the specific physiological demands of their environment, such as aquatic living conditions.

Step 2: Detailed Explanation:
Aerenchyma is a modified form of parenchyma tissue found predominantly in hydrophytes (aquatic plants like Lotus and Hydrilla). In this tissue, the cells arrange themselves to surround unusually large, interconnected internal air cavities or spaces. These hollow pockets trap gases and air, which provides buoyancy to the plant, helping its leaves and stems float on or near the water's surface to maximize sunlight absorption for photosynthesis.

Step 3: Final Answer:
The main purpose of aerenchyma is to render buoyancy to aquatic plants.