Question Detail

BIO 102 Mechanisms of Plant Nutrition and Synthesis Objective Question

Question

Which structure is responsible for gaseous exchange in the roots of plants?
Options
A Stomata
B Lenticels
C Root hairs
Correct Answer
D Pneumatophores
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 31 states, 'Respiration in roots: gaseous exchange of respiratory gases occurs through diffusion via root hairs (extensions of the epidermal cells of a root), which absorb oxygen from the air spaces between the soil particles...'

Hint

Think about the specialized cells that increase surface area for absorption in roots.

Question Info