The C4 cycle (Hatch and Slack Pathway) is a photosynthetic process in some plants where CO₂ is initially fixed into a four-carbon compound. This adaptation minimizes photorespiration and enhances efficiency by concentrating CO₂ around RuBisCO, enabling better performance under high light intensity, high temperatures, and low CO₂ conditions. This is an MCQ on C4 Cycle of Photosynthesis in plants. <<< […]

Photorespiration is a process in plants where the enzyme RuBisCO oxygenates RuBP, leading to the release of CO₂ instead of its fixation. This occurs when oxygen levels are high, reducing photosynthetic efficiency and wasting energy, particularly under stress conditions like high temperatures. This is an MCQ on Photorespiration (C2 Cycle) in Plants. <<< Back to Plant Physiology MCQ Page

The Calvin cycle, also known as the C3 cycle, is a process in photosynthesis where carbon dioxide is converted into organic compounds like glucose. It consists of three phases: carbon fixation, reduction, and regeneration of ribulose-1,5-bisphosphate (RuBP). This is an MCQ on C3 Cycle of Photosynthesis. You may also like:  Cyclic vs Non-cyclic Photophosphorylation You may also like: MCQ on […]