in the fermentation by yeast experiment, if you observed  respiration, identify the gas that was produced. Suggest two methods could used for positively identifying the gas

What is fermentation? Give examples

When making bread with common yeast, the reaction starts as an aerobic process and then becomes an anaerobic process after the oxygen is spent. A baker has created a new strain of yeast which contains no cytochrome c gene and, thus, no cytochrome c protein. This will affect what the yeast strain can do to obtain energy.  Use the passage to answer the question. Since the air bubbles in bread are generated by yeast, how will the spaces in this bread compare to those in a loaf made using normal yeast?   A. more bubbles    B. differently-shaped bubbles   C. smaller bubbles   D. bubbles more on the interior of the loaf

Student V and student W wanted to do metabolism experiments with student V doing a fermentation experiment and student W doing an aerobic respiration experiment. Student V put yeast, sucrose, and water in 6 test tubes with balloons tied to the top of each test tube (to capture any gas given off) and put the test tubes in water baths at the following temperatures (in degrees Centigrade): 0, 20, 30, 40, 50, and 100. After 45 minutes, student V noted that there was no inflation of the balloon in the first tube, a little in the second tube, and then an increasing amount of inflation until the last tube in which there was no inflation.   Explain the results of Student V’s experiment.

Using the data in the picture below, answer the five questions in the pictures.

After fermentation, what gas is trapped in the closed end of the fermentation tube?

Compare and contrast yeast and human fermentation

write a 5 sentence paragraph on cellular respiration and fermentation. Explain how the two processes are similar and how they are different.

DCPIP (2,6-dichlorophenol-indophenol), a blue dye, can act as an electron acceptor and becomes colorless when reduced. A suspension of chloroplasts is prepared, and DCPIP is added to the suspension. The sample is split into two test tubes. One test tube is exposed to light and the other is wrapped in foil (dark control). What would you observe over time comparing the light exposed and the dark control test tubes?   A. The sample exposed to light stays blue. The sample kept in the dark turns colorless.   B. The sample exposed to light turns colorless. The sample wrapped in foil stays blue.   C. Both samples stay blue.   D. Both samples turn colorless.

Describe the application of and theory behind the O–F test, including how the various forms of this test relate to organism metabolism.