Asked by Daniella Hollies on Apr 26, 2024
Verified
Which factor is least likely to act as a cue to signal the opening and closing of stomata?
A) humidity of the environment
B) intensity of sunlight
C) chemical signals from other plants
D) level of CO2 inside the leaf
E) hormonal messages from other plant parts
Stomata
Small openings on the surface of leaves and stems that allow for gas exchange.
Humidity
A measure of the amount of water vapor in the air, affecting weather, climate, and comfort levels.
Chemical Signals
Molecules released by organisms to communicate with each other, playing critical roles in behaviors such as mating, aggression, and territory marking.
- Explain the role and mechanism of stomata in gas exchange in plants.
Verified Answer
BP
Breanna PursellApr 26, 2024
Final Answer :
C
Explanation :
Chemical signals from other plants are least likely to directly signal the opening and closing of stomata. Stomatal opening and closing are primarily regulated by environmental factors (like humidity and sunlight), internal CO2 levels, and hormonal signals within the plant itself, rather than by chemical signals from other plants.
Learning Objectives
- Explain the role and mechanism of stomata in gas exchange in plants.