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STD 11 - 5. Morphology flowering plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 5. Morphology flowering plants1 Mark
MCQ
Assertion : Ginger has a prostrate growing rhizome.
Reason : Shoot growth is not effected by gravity
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • ✓
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: B.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
b
Ginger is an example of rhizome (e.g. prostrate stem creeping horizontally under soil surface). There is no effect of gravity. Rhizome of ginger contains nodes, internodes and scaly leaves. Buds are emerges from axils of scaly leaves. Response to light by plants is called phototropism. In this sense, shoot shows positive phototropism and root shows negative phototropism

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