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Yeast Cells Respire, Too (But Not Like Me and You)
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Hebrank, Mary R. |
| Copyright Year | 2013 |
| Description | Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. Then a second, smaller test tube is placed upside-down inside the solution. As the yeast cells respire, the carbon dioxide they produce is trapped inside the inverted test tube, producing a growing bubble of gas that is easily observed and measured. Students are presented with the procedure for designing an effective experiment; they learn to think critically about experimental results and indirect observations of experimental events. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | Regents of The University of Colorado Duke University |
| Subject Keyword | Data Analysis and Probability Life Science Cellular Respiration Respiration Yeast |
| Content Type | Text |
| Time Required | PT1H30M |
| Education Level | Class VII Class VIII Class IX Class X |
| Pedagogy | Experimental Activity |
| Resource Type | Hands-on |
| Subject | Probability Biology |
