How does yeast make the bread rise?

-- Anonymous, March 09, 2001

Answers

Yeast consists out of a mixture of yeast, flour, water, sugar and salt. Yeast changes sugars in the dough into carbon dioxide and alcohol. The bubbles of carbon dioxide make the dough rise.

-- Anonymous, March 12, 2001

...and the proteins combine to make a strong elastic sheet called gluten (formed by adding water with wheat flour)which stretches but prevents the gases from escaping.

-- Anonymous, March 13, 2001