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Control and Coordination — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceControl and Coordination1 Mark
MCQ
Example of positive geotropism is :
  • A
    Closing of flowers
  • B
    Upwards growth of stem
  • ✓
    Downward growth of root
  • D
    Lateral growth of root
✓

Answer

Correct option: C.
Downward growth of root
Positive geotropism is the movement towards the earth. In the case of roots, they grow towards the earth and are thus, called positively geotropic.
Whereas shoots are negatively geotropic.

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