The document discusses energy transformations that occur through photosynthesis and respiration in cells. Photosynthesis takes place in chloroplasts and uses energy from sunlight to convert carbon dioxide and water into oxygen and glucose. Respiration occurs in mitochondria and releases energy by breaking down glucose in the presence of oxygen, producing carbon dioxide and water. Both processes involve the use of ATP and involve energy transformations between light, chemical bonds in molecules, and the movement of electrons.

1. Energy Transformations: Photosynthesis & Respiration

6. Photosynthesis