Chapter 10 Flashcards
Light compensation point
Net CO2 uptake and loss (net photosynthesis) = 0
Photoinhibition
Too much light
Shade-tolerant plants
Lower light saturation point and max rate of photosynthesis, produce less rubisco, more chlorophyll
C4 photosynthetic pathway
Contain both mesophyll and bundle sheath cells for photosynthesis, increased rate of photosynthesis, creates an extra step for carbon fixation
CAM pathway
Like C4,but it all happens in the mesophyll, stomata open at night
Light saturation point
When the rate of photosynthesis matches the rate of respiration
What is the dilemma of water and temperature stress faced by plants
As air temperature increases, the amount of water required by the plant to offset loss due to transpiration increases