Exploring the World of Algae
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Questions and Answers

Which of the following is NOT a characteristic of algae?

  • They are chlorophyll-bearing
  • They are terrestrial organisms (correct)
  • They are simple organisms
  • They are largely aquatic organisms

    • How do algae reproduce?

  • By sexual reproduction only
  • By a combination of vegetative, asexual, and sexual methods (correct)
  • By vegetative reproduction only
  • By asexual reproduction only

    • What is the significance of algae in the environment?

  • They are primary consumers of energy-rich compounds
  • They are primary producers of energy-rich compounds (correct)
  • They decrease the level of dissolved oxygen in their immediate environment
  • They fix a small amount of carbon dioxide through photosynthesis

    • Which class of algae is known for producing hydrocolloids used commercially?

    <p>Phaeophyceae</p> Signup and view all the answers

    Which marine algae is used to grow microbes and in preparations of ice-creams and jellies?

    <p>Gracilaria</p> Signup and view all the answers

    Which species of algae is rich in proteins and used as a food supplement even by space travellers?

    <p>Chlorella</p> Signup and view all the answers

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