2.Fermentation Experiment in Thermos Bottlea.ProcedureObserve the thermos bottle demonstration in the back of the lab. Both ther-moses, control and experimental, were set-up simultaneously at roomtemperature. A mixture of yeast and water was placed in the controlthermos. Read the temperature on the thermometer in the control thermosIstomins and record it below. Note the tubing that leads from the thermos to a flaskof water containing a pH indicator. This pH indicator will change color asthe pH of the water changes. A green color indicates a pH of 7 (neutral), ayellow color indicates a pH of 5 (acidic), and a blue color indicates a pH of9 (basic). The major substance that would change the pH of the water in thisexperiment is carbon dioxide. When CO₂ combines with H₂O, a weak acid87 evecalled carbonic acid (H₂CO3) is formed. Both flasks of water, attached to controland experimental thermoses, were originally set-up with water of a pH 7 (neutral).Keeping this information in mind, observe the control flask and then answer thequestions below.A mixture of yeast, water, grape juice, and sugar was placed in the experimentalthermos. Read the temperature on the thermometer in the experimental thermos andrecord it below. Observe the flask connected to the experimental thermos andanswer the questions below.b. Questions1. Temperature of control thermos2.3.Is any gas leaving the control thermos?25What pH does this color correspond to?Explain why this particular pH is found.NoWhat color is the pH indicator in the flask with the control thermos?GiverExplain.4. Temperature of experimental thermosExplain any difference as compared with control thermos temperature.Explain why this particular pH is found.5. Is any gas leaving the experimental thermos?Explain.What color is the pH indicator in the flask with the experimental thermos?

Note: please always mention the required questions in case of multiple ones. Thank you! Introduction…

1. Temperature of control thermos 2. Is any gas leaving the control thermos? 3. 25 What pH does this color correspond to? Explain why this particular pH is found. 102 No What color is the pH indicator in the flask with the control thermos? Giver Explain. Explain why this particular pH is found. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?

1. Temperature of control thermos 2. Is any gas leaving the control thermos? 3. 25 What pH does this color correspond to? Explain why this particular pH is found. 102 No What color is the pH indicator in the flask with the control thermos? Giver Explain. Explain why this particular pH is found. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter17: Metabolism: An Overview

Section: Chapter Questions

Problem 19P: Which of the following experimental approaches is likely must complete picture of a particular...

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