Which outcome occurs when photorespiration rate exceeds carboxylation rate due to Rubisco during hot conditions?

💡 Explanation

When photorespiration exceeds carboxylation in hot conditions, Rubisco binds more oxygen than carbon dioxide because the active site's specificity decreases with temperature, leading to a net loss of fixed carbon and reduced ATP yield. Therefore reduced photosynthetic efficiency results, rather than regeneration, fixation or elevated starch synthesis which depends directly carbon fixation.

• Which outcome occurs when a C4 plant transitions to conditions favoring C3 photosynthesis due to reduced photorespiration?
• Which risk increases when a bat's larynx malfunctions during hunting?
• Which consequence results following vasodilation across seal flippers?
• Which outcome occurs when increasing atmospheric carbon dioxide concentration inhibits photorespiration in C3 plants?
• Which metabolic consequence limits carbon fixation efficiency when internal leaf temperature elevates?
• Which mechanism triggers increased cutaneous vasodilation in mammals exposed to heat?