NLN PAX Nursing Admission Exam

Answer: B, The process that produces glucose from water and carbon dioxide is photosynthesis. The general formula for photosynthesis is 6CO₂ + 6H₂0 + light energy = 6C₆H1₂O₆ + 6O₂.

Key Takeaway: Plants and other photosynthetic autotrophs create carbohydrates and other organic compounds by harnessing the energy of sunlight. Photosynthesis is composed of two stages, the light reaction and the dark reaction. The light reaction consists of long chain electron transports similar to that found in respiration, and it results in the production of ATP and NADPH. In the dark reaction, NADPH created by the light reaction is used to fuel the extraction of carbon from carbon dioxide, and this carbon is used to create six carbon sugars such as glucose.