Which one of the following provides buoyancy to aquatic plants to help them float?
[amp_mcq option1=”Aerenchyma” option2=”Tracheid” option3=”Guard cell” option4=”Sclerenchyma” correct=”option1″]
This question was previously asked in
UPSC Geoscientist – 2020
Aerenchyma provides buoyancy to aquatic plants.
Aerenchyma is a modified parenchyma tissue found in many aquatic and wetland plants. It contains large air spaces (lacunae) that provide buoyancy, allowing the plant to float on the water surface. These air spaces also facilitate gas exchange (oxygen and carbon dioxide) to submerged tissues.