AIIMS 2018 Botany Photosynthesis MCQ Question

The saturation point of carbon dioxide (CO₂) in C₄ plants is critical for photosynthesis, as it indicates the maximum concentration of CO₂ that can be utilized by the plant without causing inhibition. At 360 µL/L, this saturation level ensures optimal carbon fixation, allowing the plant to efficiently convert CO₂ into organic compounds. The other options are not relevant as they do not provide any alternative saturation values or conditions for CO₂ in C₄ plants, thus failing to contribute to the understanding of this physiological concept.