155,507 views
10 votes
10 votes
Yeast is a unicellular organism that undergoes fermentation, a type of anaerobic respiration, to convert sugar into alcohol and carbon dioxide. In an experiment testing yeast activity, Sakurapoured equal amounts of warm water into two bowls. She added 1 teaspoon of sugar to only one bowl. Next, she added 1 teaspoon of yeast to each bowl. Within a few minutes, bubblesstarted to rise to the top of both bowls. Which of the following best explains why Sakura observed more bubbles produced in the bowl with sugar than in the bowl without sugar?A.Sugar provided the chemical energy for driving photosynthesis, resulting in greater production of oxygen bubbles.B.Sugar provided the light energy for driving cellular respiration, resulting in greater production of oxygen bubbles.C.Sugar provided the light energy for driving photosynthesis, resulting in greater production of carbon diaxide bubbles.D.Sugar provided the chemical energy for driving cellular respiration, resulting in greater production of carbon dioxide bubbles.

User DazWorrall
by
3.2k points

1 Answer

11 votes
11 votes

The correct answer is D. Sugar provided the chemical energy for driving cellular respiration, resulting in greater production of carbon dioxide bubbles. Sugar is a chemical used by heterotrophic organisms to perform cellular respiration, which ultimate product is carbon dioxide (CO2).

User AppleLover
by
3.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.