Question

a) Mehaa filled a container with dough and added yeast to it. She kept it aside for a few days .
Write down the reaction that will take place in the container​

Answer 1

Answer:

The yeast changes the sugar in the dough into carbon dioxide gas and ethanol (alcohol).

The gas, trapped in the dough, makes it rise; the alcohol produced during fermentation evaporates during baking. Hence, When you add yeast to the dough, it rises because the rapidly reproducing yeast cells release carbon dioxide due to anaerobic respiration.

So, the correct answer is 'The rapidly reproducing yeast cells release carbon dioxide due to anaerobic respiration'.

Answer 2

The reaction that will take place in the container is of anaerobic respiration because yeast cells emit carbon dioxide that makes the dough rise.

• Yeast is a type of organism that performs the fermentation process, which involves breaking down sugar into simpler forms to obtain energy.
• Carbon dioxide and alcohol are produced during this process, and carbon dioxide aids in the rise of the dough.

Reaction:-

• C6H12O6 → 2C2H5OH + 2CO2
• In this reaction, two molecules of carbon dioxide and two molecules of ethanol are generated for every molecule of glucose.