Biology Homeostasis PMDC Conceptual Practice
PMDC Verified Question 97 of 99
Specialized spongy plant tissue containing prominent intercellular air spaces called aerenchyma is an anatomical feature of:
A
Xerophytes
B
Mesophytes
C
Sciophytes
D
Hydrophytes
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Hydrophytes
Concept: Anatomy of hydrophytic plants.

Solution: Hydrophytes possess aerenchyma tissue with large lacunae (air channels), enabling internal gas exchange (oxygen transport to submerged roots) and providing buoyancy.

Why other options are incorrect:
  • Option A: Xerophytes contain dense palisade parenchyma and water-storing succulents.

  • Option B: Mesophytes contain standard spongy and palisade mesophyll.

  • Option C: Sciophytes are shade-adapted plants with high chlorophyll density.

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