Which of the Following Would Tend to Increase Transpiration

Question

Which of the following would tend to increase transpiration?
A) a rainstorm
B) sunken stomata
C) a thicker cuticle
D) higher stomatal density
E) spiny leaves

Accepted Answer

Higher stomatal density would lead to an increase in transpiration as it would provide more opportunities for water to evaporate from the plant. A rainstorm, sunken stomata, and a thicker cuticle would all decrease transpiration. Spiny leaves may have an indirect effect on transpiration by increasing air movement around the plant, but it is not as direct as the effect of stomatal density.