高中生物细胞呼吸教学图

Create a simple biology diagram titled "Cellular Respiration at a Glance" for high school students. Show how glucose turns into energy inside a cell. Include glycolysis, the Krebs cycle, and the electron transport chain. Use arrows to connect the steps, and label the main molecules: glucose, pyruvate, ATP, NADH, FADH2, CO2, O2, and H2O. Make it look like a clean classroom handout or slide, with a white background, simple icons, clear labels, and easy-to-read text. Avoid tiny text, extra decoration, or anything that makes the diagram hard to understand.