This activity demonstrates the use of carbon by an aquatic plant. The process of photosynthesis can be represented by the reaction: CO2 + H20 + light _ C6H12O6 + O2. There are two distinct steps: the light dependent reactions (involving H20) and the light independent reactions (involving CO2). The light reactions supply the energetic molecules (ATP and NADPH) required to carry out the fixation of carbon from CO2 into larger organic molecules that can be formed into glucose. Though the carbon fixation reactions do not require light, they are dependent upon the energy (in the form of ATP and NADPH) supplied by the light reactions.
Categories: Teacher Demonstration
The International Astronomical Union classifies solar system bodies into three categories: planets, dwarf planets, and small solar system bodies (including comets, asteroids, and... read more
Students watch the teacher demonstrate the OJ powered clock. The teacher guides students to wonder what they could change to make the clock work. They do some brainstorming and then the next period,... read more