Hank explains in-depth the series of reactions that take place for a plant to produce food for itself, also known as photosynthesis. This video also explores the prerequisites (sunlight, carbon dioxide, and water) of these reactions.
Key Words: Xylem, Stomata, Chlorophyll, Chloroplast, Thylakoid, Photoexcitation, Photosystem II, Electron Transport Chain, Cytochrome Complex, ATP
Beakman explains how leaves lose chlorophyll using a cartoon video. Then he explains the role of chlorophlyll in photosynthesis verbally. To further demonstrate, Beakman acts like the "chef" chlorophyll that provides food for the plant.
By observing the chloroplasts in a leaf, the students learn that plants produce their own food and do not get it from another source. The students come to the conclusion that the chloroplasts use sunlight, air, and water to create sugar, which is used as energy for the plant.
Hank explains the Calvin Cycle, the light-independent reactions that occur within a plant to turn sunlight, water, and carbon dioxide into energy. The Calvin Cycle is broken down into three steps: Fixation, Reduction, and Regeneration.