The bread dough rises because of :
(a) heat (b) grinding (c) growth of yeast cells (d) kneading
Name the micro-organism used in bread-making which makes the bread-dough rise. How does it makes the dough rise ?
Assertion (A): Yeast is used in bakeries to make bread and cakes. Reason (R): Yeast are added to the dough to produce carbon dioxide which makes the dough rise by fermentation process.