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03/09/2020 12:55 pm
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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
1 Answer
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03/09/2020 12:55 pm
(d) lenticels
Explanation:
During secondary growth, where epidermis is replaced by tough and hard periderm, the cracked/ruptured epidermis forms the small holes called lenticels which help in gaseous exchange.