In a hypothetical experiment, a scientist genetically modifies a C4 plant to lack PEP carboxylase. Which of the following would be the MOST likely outcome under normal atmospheric conditions?
The plant would switch to CAM photosynthesis.
The plant would exhibit significantly reduced CO2 fixation and increased photorespiration.
CO2 fixation would remain unchanged, but the plant would require more water.
The plant would grow more efficiently due to reduced energy expenditure in the C4 pathway.
Related Questions
Under conditions of high temperature and light intensity, why do C4 plants show higher photosynthetic rates compared to C3 plants?
C4 plants have a higher affinity for CO2 than C3 plants.
C4 plants open their stomata more frequently than C3 plants.
C4 plants can utilize a wider range of light wavelengths compared to C3 plants.
Spatial separation of initial CO2 fixation and the Calvin cycle minimizes photorespiration.
The process which makes major difference between and plants is
respiration
glycolysis
Calvin cycle
photorespiration
Which of the following is NOT a characteristic of C4 plants?
High CO2 compensation point
Kranz anatomy
Presence of PEP carboxylase
Dimorphic chloroplasts
The primary distinction between and plants lies in their:
initial product of fixation
ability to grow in hot and dry climates
utilization of light energy
requirement for water
In C4 plants, the initial carboxylation reaction occurs in:
Mesophyll cells
Bundle sheath cells
Both mesophyll and bundle sheath cells
Neither mesophyll nor bundle sheath cells
The process which makes major difference between and plants is
respiration
glycolysis
Calvin cycle
photorespiration
Which type of plants primarily utilize the C4 pathway?
Plants in hot, dry environments
Plants in cool, shaded environments
Aquatic plants
All plants
