Biology 0610 · IGCSE · Tropic responses

Tropic responses — practice question

A young maize seedling develops from a seed. The seedling is laid on its side and kept in a room that has a light source for several days. What will happen to the young shoot?

  • AAuxin becomes concentrated in the lower part of the shoot and the shoot grows towards the light.
  • BAuxin becomes concentrated in the upper part of the shoot and the shoot grows towards the light.
  • CAuxin is evenly distributed in the shoot and the shoot grows towards the light.
  • DAuxin is evenly distributed in the shoot and the shoot grows away from the light.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI