Question

Answer the following questions in 10–20 words: (2 marks)

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 mi in the container.​

Answer 1

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