MDCAT Biology MCQ #2448

A potted plant placed near a window bends towards the light source. Which hormone is primarily responsible for this differential growth?

MDCAT Biology MCQ #2448

  1. Question 1

    Q1. A potted plant placed near a window bends towards the light source. Which hormone is primarily responsible for this differential growth?

    • A) Auxins
    • B) Gibberellins
    • C) Cytokinins
    • D) Abscisic acid

    Answer: Auxins

    Explanation: Auxins migrate to the dark side, causing cell elongation there. Gibberellins are tempting but primarily affect stem elongation via different mechanisms.