Guard cells of stoma are ________ ?
Correct answer: D. Kidney-shaped
- A. Irregular in shape
- B. Convex in shape
- C. Long and cylindrical in shape
- D. Kidney-shaped
Explanation
In most dicot plants, guard cells are kidney-shaped and change their turgor to open or close the stomatal pore. Students may choose long and cylindrical because grass guard cells have a dumbbell-like form, but that is not the usual shape in most plants.
Last updated
Related questions
The fluid mosaic model describes the plasma membrane as
The statement that all cells arise from pre-existing cells was added to the cell theory by
The large central vacuole of a mature plant cell is bounded by a membrane called the
Which structure is normally absent from the cells of higher plants?
Plasmodesmata are