Which organism is used to ripen Roquefort cheese?

The puffed-up appearance of dough is due to the production of . . . . . . gas.

Study the following flow chart that shows curd formation from milk and select the correct option for $A$ and $B$.
Milk is incubated with curd
$\downarrow$
$LAB$ shows growth in milk
$\downarrow$
Production of .....$A$.....
$\downarrow$
Coagulation and digestion of milk protein
$\downarrow$
Improved nutritional quality by increased ....$B$....

What is the beneficial role of $LAB$ in our stomach?

Name some traditional Indian foods made of wheat,rice and Bengal gram (or their products) which involve the use of microbes.

The large holes in Swiss cheese are due to the production of a large amount of $a$ by a bacterium $b$. Here $a$ and $b$ refer to: