Consider the following statements: 1. Chlorella is present in sewage.

1.	Consider the following statements: 1. Chlorella is present in sewage. 2. Chlorella produces food rich in vitamins, proteins, etc. 3. Chlorella is used in prolonged space flight for O2. 4. Chlorella yields an antibiotic, penicillin. Which of the statements given above is/are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1, 2 and 3 only (d) 1, 2, 3 and 4
Answer» The correct option is :(b) 2 and 3 only Explanation: In sewage treatment tanks, different aerobic bacteria are used to degrade organic wastes. 'Chlorella' is used as a source of providing oxygen to the bacteria. Chlorella is an attractive food source as it is high in protein and other essential nutrients. Dried Chlorella contains around 45% protein, 20% fat, 20% carbohydrate and pretty good amount of vitamins. Chlorella is a potential plant to be used in space flight shuttles for continuous oxygen supply. Chlorellin is an antibiotic obtained from chlorella.

Consider the following statements: 1. Chlorella is present in sewage. 2. Chlorella produces food rich in vitamins, proteins, etc. 3. Chlorella is used in prolonged space flight for O2. 4. Chlorella yields an antibiotic, penicillin. Which of the statements given above is/are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1, 2 and 3 only (d) 1, 2, 3 and 4

Answer»

The correct option is :(b) 2 and 3 only

Explanation:

In sewage treatment tanks, different aerobic bacteria are used to degrade organic wastes. 'Chlorella' is used as a source of providing oxygen to the bacteria. Chlorella is an attractive food source as it is high in protein and other essential nutrients. Dried Chlorella contains around 45% protein, 20% fat, 20% carbohydrate and pretty good amount of vitamins. Chlorella is a potential plant to be used in space flight shuttles for continuous oxygen supply. Chlorellin is an antibiotic obtained from chlorella.

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