Which outcome occurs when high oxygen concentration competitively inhibits ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) in plant cells?

💡 Explanation

When high oxygen concentration competitively inhibits rubisco, photorespiration rate increases because rubisco binds oxygen instead of carbon dioxide, leading to energy waste. Therefore, photorespiration results, rather than Calvin cycle increase, which requires CO2, increased conductance, or chlorophyll synthesis.

• Which consequence results when a xylem embolism forms in an oak tree during a drought?
• Which outcome occurs when birds in arctic regions experience extreme cold despite insulation?
• When xylem sap encounters a midday atmospheric vapor pressure deficit, which consequence results?
• Which outcome impairs tuna migration when thermal stratification occurs?
• Which outcome primarily triggers swim bladder deflation in fish during rapid descent?
• Which outcome results when a mating firefly fails?