When light shines on a shoot from one side, auxin

  1. moves to the lit side and stops growth
  2. moves to the shaded side, causing cells there to elongate more
  3. moves to the roots
  4. is destroyed completely
Answer

B) moves to the shaded side, causing cells there to elongate more

Unequal auxin causes bending towards light. O Level Biology · Topic 15 Coordination and Response in Plants · 15.1 Coordination and response in plants

Biology MCQ · More O Level Biology: Coordination and Response in Plants MCQs · Practise