Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Nature & AnimalsWhich outcome occurs when high oxygen concentration outcompetes carbon dioxide binding within C3 photosynthetic pathways?
A)Photorespiration reduces net carbon fixation✓
B)Chlorophyll synthesis increases by feedback loop
C)Stomatal closure prevents water transpiration
D)Electron transport chain enhances ATP production
💡 Explanation
When oxygen concentration is high, photorespiration occurs because Rubisco binds with O2 instead of CO2, resulting in a loss of fixed carbon. Therefore net carbon fixation decreases, rather than chlorophyll increase, stomatal closure, or enhanced ATP production processes which depend on different biochemical conditions.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Nature & Animals →- Which outcome occurs when whale baleen plates degrade?
- Which risk significantly increases for marine mammals experiencing rapid ascent from deep dives due to nitrogen solubility dynamics?
- Which metabolic consequence arises in a hibernating mammal as ambient temperature nears freezing?
- Which influence on lift occurs as wingtip vortices intensify during bird flight?
- Which outcome occurs when an insect disrupts bat sonar frequencies?
- Which outcome results when estuarine mangrove seedlings secrete excess salts?