Production of Fruit Beverages

Q. Which one of the following is the most suitable, medium for culture of Drosophila melanogaster ?

1. Cow dung
2. Moist bread
3. Ripe banana
4. Agar agar

Q.

Give reasons for the following:

Pickles do not get spoiled if they contain large amount of salt.

Q. produced by the fungi Aspergillus niger helps in the production of packaged fruit juices.

1. Chitinase
2. Cellulase
3. Lignin
4. Pectinase

Q. How does Aspergillus niger help the processed fruit juice industry?

1. It helps in preservation of the juice
2. It helps to improve the flavor of the juice
3. It gives us pectinase that dissolves pectin and gives a velvety texture to juice
4. All of the above

Q. Mucopolysccheides is made of what

Q. produced by the fungi Aspergillus niger helps in the production of packaged fruit juices.

1. Chitinase
2. Cellulase
3. Lignin
4. Pectinase

Q. produced by the fungi Aspergillus niger helps in the production of packaged fruit juices.

1. Chitinase
2. Cellulase
3. Lignin
4. Pectinase

Q.

Continuous addition of sugar in ‘fed-batch’ fermentation is done to:

1. Purify enzymes

2. Degrade sewage

3. Produce methane

4. Obtain antibiotics

Q. How does Aspergillus niger help the processed fruit juice industry?

1. It gives us pectinase that dissolves pectin and gives a velvety texture to juice
2. It helps in preservation of the juice
3. It helps to improve the flavor of the juice
4. All of the above

Q.

Continuous addition of sugar in ‘fed-batch’ fermentation is done to:

1. Purify enzymes

2. Degrade sewage

3. Obtain antibiotics

4. Produce methane

Q.

Continuous addition of sugar in ‘fed-batch’ fermentation is done to:

1. Purify enzymes

2. Degrade sewage

3. Produce methane

4. Obtain antibiotics

Q. Assertion :

Bacillus thuringenesis is toxic to many insects.

Reason: It inhibits ion transport in the midgut.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect