In vascular plants, cavitation is the:
A) rupture of water columns.
B) expulsion of air from water columns.
C) formation of air bubbles due to particulate matter.
D) reduction of surface tension at the meniscus spanning pores in the pit membrane.
E) filling of vessels with water vapor.
Correct Answer:
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Q2: A dry breeze increases the rate of
Q3: Which of the following statements about stomatal
Q4: Stomatal transpiration involves two steps:
A)evaporation and diffusion.
B)evaporation
Q5: Plants in hot climates regularly close their
Q6: Which of the following statements concerning the
Q7: Phototropins are:
A)osmoticums.
B)photoreceptors.
C)microfibrils.
D)enzymes.
E)active-transport proteins.
Q8: Plants with crassulacean acid metabolism:
A)open their stomata
Q9: The rate of transpiration is affected by
Q10: In the process of stomatal closing, which
Q11: The principle solute involved in creating a
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