College and University
Photosynthesis and Cellular Respiration
Watch living algae take up and give off carbon dioxide.
Students put algae beads in an indicator solution and set them in light and in dark. The indicator color tracks carbon dioxide going in and out. Students read the change over time and calculate rates for photosynthesis and respiration.
What students do
What this lab teaches
What students do
Students set algae beads in light and dark in a carbon dioxide indicator. They record the color change over time. They turn those readings into rates and compare net photosynthesis with respiration.
Vision and Change
Core concept: pathways and transformations of energy and matter.
Core competency: quantitative reasoning.
Plan for it
Time, equipment and class size will be listed here when the lab is finished.
Free downloads
Our Lesson Plans
Photosynthesis and Cellular Respiration
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Algae Beads: Seven Lessons for High School, adapted
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Kits for these lessons
Algae Beads: Make Your Own FULL KIT
Algae Research Supply: Algae Beads