Question

Hypothesis: Increasing water temperature had no effect on the fermentation rate of yeast. Experiment: Compared yeast in room-temperature (22°C) water to yeast in lukewarm (45°C) water. Measured CO2 production. What statement is the most appropriate conclusion for David to write?

Answer 1

Answer: c

Explanation: The results do not support the hypothesis because the yeast in lukewarm water had a faster fermentation rate than the yeast in room temperature water. edg

Answer 2

Answer: If the temperature of the water bath rises then the rate of carbon dioxide production will also rise.

Step-by-step explanation:

Yeast is a eukaryotic cell and it belongs to the kingdom fungi. It conducts the chemical reactions involved in alcoholic fermentation. At the higher temperature, the chemical bonds of the enzyme involved in the alcoholic fermentation may break. Thus, with the increase in temperature of water the enzyme will not carry alcoholic fermentation and the rate of fermentation of yeast will decrease.