![Design the lab
1. Ask yourself a question. How does [specific factor] influence yeast growth?
2. Research about the topic.
3. Write a hypothesis for your experiment.
4. Select the independent variable with four levels and 3 repetitions.
5. Select dependent variable. Explain how you are going to collect data.
6. Determine controlled variables and how to keep them constant.
7. Make a list of materials.
8. Write a clear and safe procedure.](https://image.slidesharecdn.com/yeastlabdesigninstructions-160126095906/85/Yeast-lab-design-instructions-4-320.jpg)
Yeast lab design instructions
- 1. Influence of a specific factor inthe growthof yeast.
- 2. Yeast Lab Objective: Yeast requires several factors for optimum activity. These include a source of carbohydrates, water, pH level, and temperature. This activity will illustrate to the student that each factor has an optimum level and that small changes in any one factor can affect the amount of growth in yeast and therefore the production of carbon dioxide.
- 3. Background Information Research What is yeast? What is yeast used for? What factors influence yeast growth? What is the difference between respiration and fermentation? Growth requirements discussion: 1) Carbohydrates: simple sugars vs. starches 2) Sources of sugars 3) pH: yeast grows best at a pH around 7 Methods to alter pH 4) Water: H+ and OH-, binding of water and sugar molecules 5) Types of yeast: Baker’s vs. brewer’s
- 4. Design the lab 1. Ask yourself a question. How does [specific factor] influence yeast growth? 2. Research about the topic. 3. Write a hypothesis for your experiment. 4. Select the independent variable with four levels and 3 repetitions. 5. Select dependent variable. Explain how you are going to collect data. 6. Determine controlled variables and how to keep them constant. 7. Make a list of materials. 8. Write a clear and safe procedure.
- 5. Idea of how results may look