NEET Biology question
Consider the following statements. I. Agar, one of the commercial products obtained from Gelidium and Gracilaria are used to grow microbes and in preparations of ice-creams and jellies. II. Chlorella and Spirogyra are used in sewage disposal ponds. III. Some species of marine algae like Porphyra, Laminaria and Sargassum are used as food. Which of the statements given above are correct?
Answer: (B)
Solution
Agar from Gelidium and Gracilaria is indeed used to culture microbes and in food preparations (I correct), and Porphyra, Laminaria and Sargassum are genuinely used as food (III correct). Statement II is not
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