Which outcome occurs when high oxygen concentrations inhibit rubisco’s carboxylation activity?

💡 Explanation

When high oxygen levels inhibit rubisco, photorespiration increases because rubisco catalyzes oxygen fixation instead of carbon dioxide, leading to a net loss of energy and carbon. Therefore photorespiration increases, rather than suppressed CAM, wider stomata, or accelerated chlorophyll synthesis, which depend on different environmental cues.

• Which risk increases when stomata close due to salinity?
• Which process gives the katydid camouflage from predators?
• Which disruption impairs wing development when imaginal discs fail to express the apterous gene?
• Which animal behavior results when localized iron deposits incorrectly calibrate an internal magnetic field map?
• Which metabolic consequence results when a hibernating marmot experiences a sudden, involuntary shivering episode?
• Which outcome occurs when CAM pathway enzyme phosphoenolpyruvate carboxylase (PEPcase) malfunctions?