#Question id: 10223
#Unit 6. System Physiology – Plant
when plastoquinone is accumulates in the reduced state, Reduced plastoquinone accumulates when PSII is being activated more frequently than PSI. What will happen when plastoquinone becomes more oxidized?
#Question id: 10224
#Unit 6. System Physiology – Plant
Exposure to high levels of excess light that damage the photosynthetic system and decrease both quantum efficiency and maximum photosynthetic rate results
#Question id: 10225
#Unit 6. System Physiology – Plant
Air circulation around the leaf removes heat from the leaf surfaces if the temperature of the leaf is higher than that of the air; this phenomenon is called
#Question id: 10226
#Unit 6. System Physiology – Plant
Under moderate excess light Quantum efficiency decreases , but the maximum photosynthetic rate remains unchanged and caused by the diversion of absorbed light energy toward heat dissipation—hence the decrease in quantum efficiency this term is known as
#Question id: 10227
#Unit 6. System Physiology – Plant
The evaporation of water requires energy, when water evaporates from a leaf (transpiration), it removes large amounts of heat from the leaf and thus cools it. The human body is cooled by the same principle, commonly known as
#Question id: 10228
#Unit 6. System Physiology – Plant
Photorespiration and the quantum yield differ between C3 and
C4 photosynthesis, with changes particularly noticeable as temperatures vary
quantum yield for photosynthesis as a function of leaf temperature in C3 plants
and C4 plants. Following are some statements
based on this study.
c.) C3 photosynthesis is more efficient at lower temperatures