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
Related Questions
Which adaptation is LEAST likely to be found in plants adapted to arid environments?
Sunken stomata
Thick cuticle
Large, thin leaves
Succulence
Which of the following best describes the transpiration and photosynthesis compromise?
Plants prioritize transpiration over photosynthesis in hot conditions.
Photosynthesis always takes precedence over transpiration.
Plants must balance the need to take in CO2 for photosynthesis with the risk of water loss through stomata.
Transpiration and photosynthesis are unrelated processes.
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.
Which of the following environmental factors would MOST directly influence the transpiration-photosynthesis compromise?
Light intensity
Air humidity
CO2 concentration
Soil nutrient availability
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
A C4 plant exhibiting high stomatal conductance in response to elevated atmospheric CO2 experiences a sudden drop in CO2 levels. Which of the following is the MOST likely immediate consequence regarding the transpiration and photosynthesis compromise?
Increased transpiration and decreased photosynthetic rate
Decreased transpiration and increased photosynthetic rate
Decreased transpiration and decreased photosynthetic rate
No significant change in either transpiration or photosynthetic rate
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
If a plant's stomata are completely closed, which process is directly affected?
Only transpiration
Only photosynthesis
Both transpiration and photosynthesis
Neither transpiration nor photosynthesis
On a hot, dry day, a plant is most likely to:
Open its stomata fully to maximize photosynthesis.
Partially close its stomata to conserve water, even though this reduces photosynthesis.
Completely close its stomata to prevent any water loss.
Increase its rate of photosynthesis to compensate for water loss.
The transpiration-photosynthesis compromise is most pronounced in which type of environment?
Cool and humid
Hot and humid
Hot and dry
Cool and dry
