Question

saccharomyces cerevisae
is so important to human because
a)is responsible for more citric acid production
b)can be used as a model to understand many human diseases
c)uses sugar to produce CO2 during bread making
d)is responsible for almost all of the alchol production worldwide
which option is correct
​

Answer 1

SoluTion :

(D) It is responsible for almost all of the alcohol production worldwide.

ExplaNation :

✏ Bread is made when dough is mixed with beker's yeast (Saccharomyces cerevisiae) and allowed to stand for several hours.

✏ The sugar present in dough is rapidly fermented by the yeast.

✏ It produces CO2 and alcohol and swells up which is known as "leavening".

• Additional information :

⏭ Microbes in industrial products:

✏ Yeast species used in alcoholic fermentation are Saccharomyces cerevisiae, S. ellipsoidens, etc.

✏ Nutrient medium used differs based on required fermentation products.

✏ The yeast species which are used in the brewing industrybfor the preparation of alcoholic drinks are collectively called brewer's yeast.

✏ Different types of alcoholic beverages are produced by using different brewer's yeast, as beer is produced by Saccharomyces pastorians and S. cerevisiae while wine is produced by S. ellipsoidens or S. cerevisiae.

✏ Whisky, rum, gin, brandy, vodka and fenny are distilled beverages, so are called hard liquors.

✏ Beer and wine are non-distilled beverages.

✏ By products of alcoholic fermentation are CO2 and ethanol.