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MHT CET Medical202626 April 2026Morning ShiftBiologyAnatomy of Flowering PlantsActual

Given below are two statements about guard cells of stomata in plants. Statement I - In monocotyledonous plants, guard cells are usually dumbbell shaped. Statement II - In Cyperus , a monocot plant, the guard cells are also kidney shaped. In the light of above statements, choose the correct option given below:

Options

  1. ABoth statement I and statement II are correct.
  2. BBoth statement I and statement II are incorrect.
  3. CStatement I is correct but statement II is incorrect.
  4. DStatement I is incorrect but statement II is correct.

Correct answer

B. Both statement I and statement II are incorrect.

Step-by-step solution

Statement I is incorrect. In most monocotyledonous plants, the guard cells are kidney-shaped (bean-shaped). Dumbbell-shaped guard cells are a specific characteristic feature primarily restricted to the families Poaceae (grasses) and Cyperaceae (sedges). Therefore, it is incorrect to generalize that monocots "usually" have dumbbell-shaped guard cells. Statement II is incorrect. Cyperus belongs to the family Cyperaceae (sedges). As a member of this family, its guard cells are dumbbell-shaped, not kidney-shaped. There

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