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Question 94

Which changing property of guard cells directly alters the width of a stomatal pore?

  1. The amount of lignin in xylem
  2. Guard-cell turgorCorrect answer
  3. The number of leaf veins
  4. The thickness of the cut stem

Explanation

Changes in guard-cell turgor alter guard-cell shape and therefore change the width of the pore between them. The rigid wall contributes to cell structure, but an unchanging wall alone cannot account for opening and closing.

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Question 94: Which changing property of guard cells directly alters the… · Cells and Microscopy · Questena