Multiple choice

Which of the following is not a root character?

  1. Endogenous in origin

  2. Positively geotropic

  3. Positively phototropic

  4. Nodes are absent
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Roots are positively geotropic (grow downward with gravity) and endogenous in origin (arise from pericycle). They lack nodes and internodes. Roots are negatively phototropic (grow away from light), not positively phototropic, which is why they grow deeper into soil rather than toward light sources.

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