Which of the following statements about stomatal movements is FALSE?
A) An increase in CO2 levels usually causes stomata to close.
B) Sensors for carbon dioxide are located in guard cells.
C) Stomatal opening and closing exhibit circadian rhythms.
D) Cacti and pineapple open their stomata at night.
E) Temperatures above 30°-35°F usually stimulate stomatal opening.[OK to add F?]
Correct Answer:
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Q1: In vascular plants, cavitation is the:
A)rupture of
Q2: A dry breeze increases the rate of
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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