Streptococcus is employed in the manufacturing of

Which microorganism is responsible for the production of lactic acid?

Which is a traditional drink of South India?

Assertion: Yeasts such as $Saccharomyces \text{ } cerevisiae$ are used in the baking industry.
Reason: Carbon dioxide produced during fermentation causes bread dough to rise by thermal expansion.

Choose the correct sentences.
$(i)$ Dosa and Idli are fermented by bacteria, not yeast.
$(ii)$ $Saccharomyces \text{ } cerevisiae$ is a yeast.
$(iii)$ $LAB$ (Lactic Acid Bacteria) increase the nutritional quality of milk by increasing vitamin $B_{12}$.
$(iv)$ Whisky and brandy are fermented beverages produced by distillation.

The bread is soft and porous when yeast cells are mixed into the wheat flour dough because: