Which of the following plant parts elongate in response to etiolation during seedling germination?
I. Roots
II. Hypocotyl
III. Internodes
IV. Leaves
A) I and II
B) II and III
C) I, II, and III
D) I, II, III, and IV

Question

Quizplus · Accepted Answer

Etiolation is a process in plants grown in partial or complete absence of light, characterized by long, weak stems, and smaller leaves due to elongation of cells. This phenomenon is most notably observed in the hypcotyl and internodes, which elongate to push the seedling upwards towards the light.

Which of the Following Plant Parts Elongate in Response to Etiolation