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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)

Pnenumatophores

d)

Lenticels



Question ID - 3738 | SaraNextGen Top Answer

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)

Pnenumatophores

d)

Lenticels

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

Mature stems of woody plants have a peripheral water proof tissue called cork (phellem). A number of scars known as lenticels are found on the surface of cork. Lenticels allow the gaseous exchange between atmosphere and living cells below the cork and also take parts in transpiration (0.1 %).

127 votes


127