Which outcome occurs when a plant experiences prolonged magnesium deficiency inhibiting rubisco’s activity?

💡 Explanation

When magnesium is deficient, rubisco's carboxylation activity decreases because magnesium is a cofactor for the enzyme, leading to a buildup of RuBP which encourages photorespiration. Reduced CO2 assimilation increases photorespiration, rather than increased chlorophyll, water issues or nitrogen fixation, which depend on independent pathways.

• Which mechanism causes increased avian mortality during prolonged volcanic ash clouds?
• In marine mammals migrating to warmer waters, which adaptation results from insufficient blubber?
• Which consequence arises when an invasive plant species disrupts established woodland nitrogen pathways?
• Which outcome occurs under high leaf temperature when rubisco oxygenase activity surpasses carboxylase activity?
• Which outcome occurs when prolonged flooding occludes plant stomata?
• Which photosynthetic inefficiency results when elevated leaf oxygen concentrations competitively inhibit rubisco carboxylation?