4:58 65 2. Answer the questions related to the video: L7.14 Experimental Variables Answered - Correct L7.15 Yeast Fermentation Unanswered • 2 attempts left A balloon is placed over each bottle at the start of the experiment. The balloon limits \( \square \) gas in the bottle causing the yeast to perform fermentation. The balloon also traps \( \square \) gas which is a product of the fermentation process. (answer "oxygen" or "carbon dioxide" for each blank) Submit 15/22
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A balloon is placed over each bottle at the start of the experiment. The balloon limits ___ gas in the bottle causing the yeast to perform fermentation. The balloon also traps ___ gas which is a product of the fermentation process.
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Text: Lab report Bio 121 Unit 3 I need a lab report for the Yeast Fermentation Lab. CO2 production and Glucose Utilization over time: - 10% Sucrose - 5% Galactose - 5% Lactose - 5% Lactose +. (Title) states the purpose of the experiment concisely. (Introduction) introduces the overall concept of fermentation and its metabolic purpose. It discusses the two types of fermentation and provides a general description of the yeast fermentation experiment as completed in the lab. It states the hypothesis. (Materials and Methods) generally describe the steps for each experiment in paragraph form. (Results) display results in a table, chart, or graph format including the title and a brief description of the information contained in the table. (Discussion) states how yeast react to glucose; compares results to what was expected and discusses. It states how yeast react to sucrose; compares results to what was expected and discusses. It states how yeast react to galactose; compares results to what was expected and discusses. It states how yeast react to lactose; compares results to what was expected and discusses. It states the significance of Lactaid in lactose and how yeast reacted; compares results to what was expected and discusses. (References) list the lab protocol, textbook, and any other sources used.
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Lab Report 10: Alcohol Fermentation 2. Yeast was added to all the tubes, but not all of them produced the gas. What had to be present in order for the gas to be made? ____________________________________________________ 3. This experiment was run at approximately 45°C. When performed at room temperature (24°C), little if any gas would have been produced within the 15-minute sampling time. Why? (Hint: Refer back to Lab 9 on Enzymes.) 4. What was the purpose of layering the oil on top of the solutions in all 6 tubes? 5. Considering the contents of tube 1, explain why it is the negative control for this experiment.
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