Which risk increases when a plant's rate of photorespiration spikes during midday heat?

💡 Explanation

When heat increases photorespiration, the oxygenation reaction by Rubisco is strongly favored because it becomes less specific to CO2. Therefore carbon fixation decreases, rather than high CO2 entry through open stomata mitigating it.

• Which outcome occurs when a grey seal undergoes prolonged diving in icy waters, inhibiting efficient oxygen delivery to vital organs?
• Which metabolic consequence limits carbon fixation efficiency when internal leaf temperature elevates?
• Which mechanism causes schooling fish to swim with synchronized movements during predator avoidance?
• Which outcome ensures plant survival when soil nitrogen is limited?
• Which consequence results when a snake's venom delivery system fails by blockage?
• Which outcome is observed when a fish's gill filaments are damaged, reducing surface area for countercurrent exchange?