AIIMS2018Botany-Microbes in Human Welfare

AIIMS 2018 Botany Industrial Products MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Select the correct one –

A

Beer produced by distillation of fermented broth

B

Bottled juices are cleared by protease and pectinase

C

Methanogens digest cellulose aerobically

D

Streptokinase is used to lower the blood cholesterol

Correct Answer

Option B

Detailed Explanation

Bottled juices are clarified using enzymes such as protease and pectinase, which break down proteins and pectin, respectively, to remove cloudiness and improve clarity. Option A is incorrect because beer is produced through fermentation, not distillation; distillation is used for spirits like whiskey. Option C is misleading as methanogens digest cellulose anaerobically, not aerobically, in environments like the guts of ruminants. Option D is false because streptokinase is an enzyme used to dissolve blood clots, not to lower blood cholesterol levels.

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