Which limitation arises for C3 plants at high temperatures, thus impacting rubisco function within the chloroplast?

💡 Explanation

Photorespiration increases because rubisco fixes O2 rather than CO2 when CO2 levels are low due to heat accelerating water loss and stomatal closure; therefore, photosynthetic efficiency plummets, rather than increasing CO2 intake or a decline in factors like, chlorophyll.

• Which process causes increased oxygen consumption by skeletal muscle during shivering thermogenesis in mammals?
• Which risk increases when punctured avian air sacs lead to subcutaneous emphysema during sustained flight?
• Which physiological benefit allows arctic foxes to survive extreme cold, related to vasodilation?
• Which outcome occurs when humidity decreases around a sunflower?
• Which physiological effect occurs when a saltwater fish is abruptly placed into freshwater?
• Which mechanism enhances hunting success when orcas pursue faster dolphins?