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 (D)</p> Signup and view all the answers

What is the alternative reductant used in anoxygenic photosynthesis?

<p>Hydrogen sulfide (C)</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 (D)</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 (C)</p> Signup and view all the answers

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

<p>Retinal (C)</p> Signup and view all the answers

What are the end products of anoxygenic photosynthesis using bacteriochlorophyll?

<p>Hydrogen sulfide and sulfur (C)</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 (D)</p> Signup and view all the answers

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