Photosynthesis Quiz
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Questions and Answers

What is the byproduct of oxygenic photosynthesis?

  • Sulfur
  • Carbon dioxide
  • Oxygen (correct)
  • Water
  • Which organisms are called photoautotrophs?

  • Fungi, bacteria, and viruses
  • Mammals, birds, and reptiles
  • Plants, algae, and cyanobacteria (correct)
  • Protozoa, archaea, and diatoms
  • What is the primary function of photosynthesis?

  • Supplying energy for cellular respiration
  • Producing and maintaining oxygen content in the atmosphere (correct)
  • Converting chemical energy into light energy
  • Synthesizing carbohydrates for storage
  • Which organisms perform anoxygenic photosynthesis?

    <p>Some bacteria and archaea</p> Signup and view all the answers

    What is the alternative reductant used in anoxygenic photosynthesis?

    <p>Hydrogen sulfide</p> Signup and view all the answers

    What is the primary function of oxygenic photosynthesis?

    <p>Produce oxygen and store chemical energy in carbohydrate molecules</p> Signup and view all the answers

    Which organisms are responsible for maintaining the oxygen content of the Earth's atmosphere?

    <p>Plants, algae, and cyanobacteria</p> Signup and view all the answers

    What is the alternative photopigment used in non-carbon-fixing anoxygenic photosynthesis?

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

    What are the end products of anoxygenic photosynthesis using bacteriochlorophyll?

    <p>Hydrogen sulfide and sulfur</p> Signup and view all the answers

    What is the main purpose of cellular respiration in relation to photosynthesis?

    <p>To metabolize organic compounds and release energy</p> Signup and view all the answers

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