Biology 0610 · IGCSE · Transpiration

Transpiration — practice question

Four leafy plant stems were each put into measuring cylinders containing $100\, \text{cm}^3$ of water. An oil layer stopped the water in the measuring cylinder from evaporating. The stems were then kept in air with different humidities and temperatures for $48$ hours, as listed in the table. The final volume of water left in the measuring cylinders is given for plant stems 1, 3 and 4. What is a likely final volume for plant stem 2?

  • Aless than $65\, \text{cm}^3$
  • Bbetween $65\, \text{cm}^3$ and $75\, \text{cm}^3$
  • Cbetween $75\, \text{cm}^3$ and $95\, \text{cm}^3$
  • Dgreater than $95\, \text{cm}^3$

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