Quiz  /  NEET MCQ on Chemiosmotic Hypothesis

  • 1. 
    ATP synthesis by ATP synthase is driven by the movement of

  • protons
  • NADPH
  • electrons
  • All of the above

  • 2. 
    Proton concentration is highest in which part of the chloroplast?

  • Stroma
  • Intermembrane space
  • Lumen of thylakoids
  • Antennae complex

  • 3. 
    Cyclic photophosphorylation is associated with the production of

  • ATP
  • NADPH
  • O
  • All of the above

  • 4. 
    During cellular respiration, chemiosmosis occurs in

  • Chloroplast
  • Mitochondria
  • Peroxisome
  • Nucleoplasm

  • 5. 
    Which of the following is necessary for chemiosmosis?

  • Proton gradient
  • Membrane
  • Proton pump
  • All of the above

  • 6. 
    Which of the following processes is responsible for generating a proton gradient across the thylakoid membrane?

  • Proton carrier transport H
  • Splitting of water on the inner side of the membrane
  • NADP reductase enzyme present at the stroma side, removes proton by reducing NADP
  • All of the above

  • 7. 
    Proton concentration is highest in which part of the mitochondria?

  • Matrix
  • Inner membrane
  • Outer membrane
  • Intermembrane space

  • 8. 
    Which part of ATP synthase forms the transmembrane channel?

  • CF
  • CF
  • Both
  • None of the above

  • 9. 
    The ATP synthesised by ATP synthase present in the thylakoid membrane is released towards

  • stroma
  • lumen
  • inner membrane
  • outer membrane

  • 10. 
    Who proposed the chemiosmotic hypothesis of ATP synthesis?

  • Francis Crick
  • H G Khorana
  • Peter Mitchell
  • J D Watson
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