Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Nature & AnimalsWhich consequence results when Rubisco malfunctions in C4 photosynthetic pathways?
A)Photorespiration rate significantly increases✓
B)Carbon fixation shifts solely to CAM
C)Chlorophyll synthesis temporarily accelerates
D)Stomata close, limiting water loss
💡 Explanation
When Rubisco malfunctions in C4 plants, the intended CO2 concentrating mechanism fails because CO2 fixation efficiency drops, leading to increased binding of O2 and thus significantly higher photorespiration. Therefore photorespiration increases, rather than triggering CAM shift or accelerating synthesis because these require different metabolic adjustments.
🏆 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 effect occurs when migratory birds encounter icing conditions that affect feather barbules?
- Which developmental consequence result when imaginal discs experience localized Hox gene repression during pupation in Drosophila?
- Which outcome occurs when a fish with a physoclistous swim bladder rapidly ascends in the water column?
- Which aerodynamic disadvantage is increased in birds soaring at very high altitudes due to reduced air density?
- Which risk increases when CAM plants close stomata during daylight hours in hot arid environments?
- Which process causes aggregation in certain bioluminescent bacteria?
