Yeasts provide leavening in bread by metabolizing the starches and sugars present in flour.Carbon dioxide bubbles are produced when the ________ present in yeast cells use(s)the sugars for cellular respiration to produce energy for the cell.

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Quizplus · Accepted Answer

Mitochondria are the organelles responsible for cellular respiration, which produces energy for the cell in the form of ATP. Yeasts, like all eukaryotic cells, have mitochondria, which means that they use them to produce energy by breaking down sugars. As yeast cells metabolize sugars in the dough, they release carbon dioxide as a byproduct, which gets trapped in the gluten network of the dough, causing it to rise and become fluffy.

Yeasts Provide Leavening in Bread by Metabolizing the Starches and Sugars