AIIMS2004Botany-Plant Anatomy
AIIMS 2004 Botany Periderm MCQ Question
Type: MCQ-conceptual-Medium-Class 11
In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through
A
aerenchyma
B
trichomes
C
pneumatophores
D
lenticels
Correct Answer
Option D
Detailed Explanation
Due to continued formation of secondary tissues in the older stem and roots however the epidermis gets stressed and ultimately tends to rupture.
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