question_answer

                Industrial production of ethanol from starch is brought about by a certain species of:     

A)                 Azotobacter

B)                 Lactobacillus

C)                 Saccharomyces   

D)                 Penicillim

Correct Answer: C

Solution :

                Yeast   (Saccharomyces) produces enzymes amylase, maltase and zymase. Amylase breaks down starch into maltose; Maltase converts maltose into glucose; glucose is converted by zymase to ethanol and \[C{{O}_{2}}\].