Biology Notes - High School

Photosynthesis captures solar energy to build glucose; cellular respiration breaks that glucose down to release energy. They are two sides of the same coin [27].

Life requires energy, and biology tracks how that energy flows. Photosynthesis and cellular respiration are two sides of the same coin. In photosynthesis, plants take carbon dioxide, water, and light to create oxygen and glucose. In cellular respiration, all living cells break down that glucose to release ATP (adenosine triphosphate), the primary energy currency of the cell. Understanding these cycles—including the Krebs cycle and the Calvin cycle—helps students visualize the chemical transformations that sustain life on Earth. Evolution and the Diversity of Life high school biology notes

How do cells