Question

As an extended-pandemic project you decide to try your hand at making bread from scratch. To proof your yeast, you add a bit of sugar and wait 5-10 minutes and check for bubbles.

a. What gaseous product creates these bubbles and which reaction creates it?

Answer 1

The gaseous product that creates the bubbles during yeast proofing is carbon dioxide (CO2). This gas is formed as a result of the fermentation reaction.

Step-by-step explanation:

During yeast proofing, you add a bit of sugar to the yeast mixture. Yeast is a living organism that feeds on sugar and converts it into energy through the process of fermentation. In this reaction, yeast breaks down the sugar into carbon dioxide and alcohol.

The equation for this reaction is:

Sugar (C6H12O6) + Yeast → Carbon Dioxide (CO2) + Alcohol