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NEET Exam  >  NEET Tests  >  Test: Electron Transport Chain (June 19) - NEET MCQ

Test: Electron Transport Chain (June 19) - NEET MCQ


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10 Questions MCQ Test - Test: Electron Transport Chain (June 19)

Test: Electron Transport Chain (June 19) for NEET 2024 is part of NEET preparation. The Test: Electron Transport Chain (June 19) questions and answers have been prepared according to the NEET exam syllabus.The Test: Electron Transport Chain (June 19) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electron Transport Chain (June 19) below.
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Test: Electron Transport Chain (June 19) - Question 1
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Which complex of the electron transport chain is responsible for pumping protons across the mitochondrial membrane?

Detailed Solution for Test: Electron Transport Chain (June 19) - Question 1
Complex 3, also known as Cytochrome C Reductase, is responsible for pumping protons across the mitochondrial membrane as it transfers electrons to cytochrome c.
Test: Electron Transport Chain (June 19) - Question 2
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Where does the electron transport chain occur within the mitochondria?

Detailed Solution for Test: Electron Transport Chain (June 19) - Question 2
The electron transport chain takes place in the mitochondrial cristae, which are the folded inner membranes of the mitochondria, housing various cytochromes and coenzymes involved in electron transport.
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Test: Electron Transport Chain (June 19) - Question 3
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What is the significance of NADH and FADH2 in the electron transport chain?

Detailed Solution for Test: Electron Transport Chain (June 19) - Question 3
NADH and FADH2 are significant because they transfer electrons to the electron transport chain and revert to NAD+ and FAD, which are essential for the proper functioning of glycolysis and the citric acid cycle.
Test: Electron Transport Chain (June 19) - Question 4
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What is the primary function of the electron transport chain (ETC)?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 4
The primary function of the electron transport chain is to transport electrons from NADH and FADH2 to protein complexes and mobile electron carriers, leading to the production of ATP as an energy source for cellular functions.
Test: Electron Transport Chain (June 19) - Question 5
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Which molecule is the final electron acceptor in the electron transport chain?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 5
Oxygen (O2) serves as the final electron acceptor in the electron transport chain, leading to the formation of water (H2O) as a product.
Test: Electron Transport Chain (June 19) - Question 6
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What type of molecule moves freely in the hydrophobic core of the mitochondrial inner membrane during electron transport?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 6
Ubiquinone (Q) molecules move freely in the hydrophobic core of the mitochondrial inner membrane during electron transport, facilitating the transfer of electrons.
Test: Electron Transport Chain (June 19) - Question 7
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Which vitamin is the precursor for the molecule FMN in the electron transport chain's Complex 1?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 7
The molecule FMN in Complex 1 of the electron transport chain is derived from vitamin B2, also known as riboflavin.
Test: Electron Transport Chain (June 19) - Question 8
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How many heme groups are present in Complex 4 - Cytochrome C Oxidase of the electron transport chain?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 8
Complex 4 - Cytochrome C Oxidase contains two heme groups, each involved in holding oxygen atoms during the reduction of oxygen to form water.
Test: Electron Transport Chain (June 19) - Question 9
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What is the main product of the electron-oxygen reaction in the electron transport chain?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 9
The main product of the electron-oxygen reaction in the electron transport chain is water (H2O), formed when electrons combine with oxygen molecules.
Test: Electron Transport Chain (June 19) - Question 10
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How does the electron transport chain contribute to ATP production?
Detailed Solution for Test: Electron Transport Chain (June 19) - Question 10
The electron transport chain generates a proton gradient across the inner mitochondrial membrane, and this gradient is used to synthesize ATP through the process of chemiosmotic phosphorylation, demonstrating the critical role of the chain in ATP production.
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