Yeast and Its Applications CDS Questions

CDS Biology

Yeast and Its Applications MCQ Questions


13.
In alcoholic fermentation, yeast converts glucose into?
A.
Acetic acid and water
B.
Water and oxygen
C.
Lactic acid and ethanol
D.
Ethanol and carbon dioxide
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ANSWER :
D. Ethanol and carbon dioxide
14.
Which process involves yeast to make bread rise?
A.
Anaerobic respiration
B.
Aerobic respiration
C.
Photosynthesis
D.
Nitrification
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ANSWER :
A. Anaerobic respiration
15.
What gas is responsible for the puffed-up appearance of bread dough?
A.
Oxygen
B.
Methane
C.
Carbon dioxide
D.
Hydrogen
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ANSWER :
C. Carbon dioxide
16.

______ is a common type of yeast used in baking.

A.

Saccharomyces cerevisiae

B.

Candida albicans

C.

Aspergillus niger

D.

None of the above

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ANSWER :

A. Saccharomyces cerevisiae

17.
Which compound produced by yeast is essential for beer flavor?
A.
Lactic acid
B.
Esters
C.
Acetic acid
D.
Hydrogen sulfide
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ANSWER :
B. Esters
18.
Which industry relies heavily on yeast for its operations?
A.
Textile
B.
Beverage
C.
Metal
D.
Electronics
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ANSWER :
B. Beverage