Which adaptation is LEAST likely to be found in plants adapted to arid environments?
Sunken stomata
Thick cuticle
Large, thin leaves
Succulence
Related Questions
Which environmental factor has the most direct impact on the transpiration and photosynthesis compromise?
Soil pH
Light intensity
Water availability
Temperature
How does the boundary layer resistance affect the transpiration and photosynthesis compromise?
A thicker boundary layer increases transpiration and enhances CO2 diffusion.
A thicker boundary layer reduces transpiration but also limits CO2 diffusion to the leaf surface.
Boundary layer resistance has no impact on either transpiration or CO2 diffusion.
A thinner boundary layer reduces transpiration and limits CO2 diffusion.
A plant is exposed to high light intensity and limited water availability. Which of the following is the most likely physiological response?
Increased stomatal opening to maximize CO2 uptake for photosynthesis.
No change in stomatal aperture, maintaining a balance between transpiration and photosynthesis.
Complete closure of stomata to prevent water loss, halting photosynthesis.
Partial closure of stomata to reduce transpiration, even at the cost of reduced CO2 uptake for photosynthesis.
Which of the following environmental factors would MOST directly influence the transpiration-photosynthesis compromise?
Light intensity
Air humidity
CO2 concentration
Soil nutrient availability
A researcher observes that a plant species exhibits a lower transpiration rate and higher water use efficiency (WUE) under high light intensity compared to low light. Which physiological adaptation BEST explains this observation?
Increased leaf thickness
Deeper root system
Increased chlorophyll content
Partial stomatal closure
What role do stomata play in the transpiration and photosynthesis compromise?
They only allow CO2 intake for photosynthesis.
They only facilitate water loss through transpiration.
They regulate the exchange of gases, including CO2 intake and water vapor release.
They have no role in either transpiration or photosynthesis.
In a CAM plant experiencing prolonged water stress, which adaptation is MOST likely to minimize the transpiration and photosynthesis compromise?
Increased stomatal density
Further temporal separation of CO2 uptake and fixation
Shifting from CAM to C4 photosynthesis
Reducing leaf surface area
The transpiration and photosynthesis compromise is primarily a balance between:
Oxygen production and CO2 uptake
Sugar production and water uptake
CO2 uptake and water loss
Light absorption and sugar production
Which adaptation is LEAST likely to be found in plants adapted to arid environments?
Sunken stomata
Thick cuticle
Large, thin leaves
Succulence
Imagine a mutant plant with stomata that are less sensitive to abscisic acid (ABA). Under drought conditions, compared to a wild-type plant, this mutant would MOST likely exhibit:
Lower transpiration rate and higher photosynthetic rate
Higher transpiration rate and lower photosynthetic rate
Lower transpiration rate and lower photosynthetic rate
Higher transpiration rate and higher photosynthetic rate
