Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the alcohol content in whiskey?

A. 6-12%
B. 60-80%
C. 40%
D. 90%
Answer» B. 60-80%
2.

Brandy is prepared by fermentation of wine.

A. True
B. False
Answer» C.
3.

Which of the following statements is incorrect regarding wine?

A. It has 10-27% alcohol
B. Red wine is red due to the animal s blood
C. Cider is apple wine
D. It is an alcoholic beverage
Answer» C. Cider is apple wine
4.

Champagne is a type of which of the following?

A. Wine
B. Beer
C. Whisky
D. Rum
Answer» B. Beer
5.

Which of the following statements is incorrect regarding beer?

A. It contains 3-6% alcohol
B. Nutrient medium is barley
C. Beer is allowed to age before pasteurisation
D. It contains 10-27% alcohol
Answer» E.
6.

What are the by-products of alcoholic fermentation?

A. CO<sub>2</sub> and Yeast
B. CO<sub>2</sub> and H<sub>2</sub>O
C. CO<sub>2</sub> and ethanol
D. H<sub>2</sub>O and glucose
Answer» D. H<sub>2</sub>O and glucose
7.

What is the alcohol content in beer?

A. 3-6%
B. 10-27%
C. 60-70%
D. 95%
Answer» B. 10-27%
8.

Which of the following is not a process of fermentation?

A. Batch process
B. Continuous process
C. Feed Batch process
D. Conceptual process
Answer» E.
9.

The crushed food for obtaining malt is called wort.

A. True
B. False
Answer» C.
10.

What is the nutrient medium for beer?

A. Barley malt
B. Fermented cereals
C. Fermented molasses
D. Fermented juices
Answer» B. Fermented cereals
11.

What is the common name of Saccharomyces ellipsoidens?

A. Brewer s yeast
B. Wine yeast
C. Sake yeast
D. Ale yeast
Answer» C. Sake yeast
12.

Who found out that beer and buttermilk are produced due to the activity of Yeast?

A. Louis Pasteur
B. Waksman
C. Babes
D. Joubert
Answer» B. Waksman
13.

How are microorganisms added in bioreactors?

A. Directly mixed with medium
B. Directly charged with the medium
C. Added on the surface of the nutrient medium
D. By mixing them with pebbles
Answer» D. By mixing them with pebbles
14.

Which of the following is the container where fermentation is carried out?

A. Sludge eliminator
B. Bioreactor
C. Activator
D. Fermenter
Answer» C. Activator
15.

Which of the following processes is not involved in the industrial utilisation of microbes?

A. Laboratory scale process
B. Demagnetisation process
C. Manufacturing process
D. Pilot plant scale process
Answer» C. Manufacturing process