NEET MCQ on Chemiosmotic Hypothesis Quiz Questions

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

A protons B NADPH C electrons D All of the above

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

A Stroma B Intermembrane space C Lumen of thylakoids D Antennae complex

3. Cyclic photophosphorylation is associated with the production of

A ATP B NADPH C O D All of the above

4. During cellular respiration, chemiosmosis occurs in

A Chloroplast B Mitochondria C Peroxisome D Nucleoplasm

5. Which of the following is necessary for chemiosmosis?

A Proton gradient B Membrane C Proton pump D All of the above

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

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

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

A Matrix B Inner membrane C Outer membrane D Intermembrane space

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

A CF B CF C Both D None of the above

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

A stroma B lumen C inner membrane D outer membrane

10. Who proposed the chemiosmotic hypothesis of ATP synthesis?

A Francis Crick B H G Khorana C Peter Mitchell D J D Watson

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