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NEET Exam  >  NEET Questions  >   Which of these statements is incorrect?a)Enz... Start Learning for Free
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Which of these statements is incorrect?
  • a)
    Enzymes of TCA cycle are present in mitochondrial matrix
  • b)
    Glycolysis occur s in cytosol
  • c)
    Oxidative phosphorylation takes place in outer mitochondrial membrane
  • d)
    Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of these statements is incorrect?a)Enzymes of TCA cycle are pre...
Incorrect Statement: Oxidative phosphorylation takes place in outer mitochondrial membrane.

Explanation:

Enzymes and pathways of cellular respiration are spread across different compartments of the cell. The correct statements about the location of the different steps in cellular respiration are given below.

Enzymes of TCA cycle are present in mitochondrial matrix:
The TCA cycle is a series of enzyme-catalyzed reactions that occur in the mitochondrial matrix. The enzymes of the TCA cycle are located in the mitochondrial matrix and are responsible for the oxidative breakdown of acetyl-CoA to produce energy in the form of ATP.

Glycolysis occurs in cytosol:
Glycolysis is the first step in cellular respiration and occurs in the cytosol of the cell. During glycolysis, glucose is broken down into two molecules of pyruvate, and ATP and NADH are produced.

Oxidative phosphorylation takes place in inner mitochondrial membrane:
Oxidative phosphorylation is the final step in cellular respiration and takes place in the inner mitochondrial membrane. During oxidative phosphorylation, the electron transport chain (ETC) uses the energy from NADH and FADH2 to pump protons (H+) across the inner mitochondrial membrane, creating an electrochemical gradient. ATP synthase then uses the energy from the proton gradient to produce ATP.

Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms:
Glycolysis requires NAD+ as a coenzyme to accept electrons during the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate. If NAD+ is not available, glycolysis stops. However, if pyruvate is converted to lactate or ethanol, NAD+ is regenerated, allowing glycolysis to continue.

In summary, the incorrect statement is that oxidative phosphorylation takes place in the outer mitochondrial membrane. It actually takes place in the inner mitochondrial membrane.
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Community Answer
Which of these statements is incorrect?a)Enzymes of TCA cycle are pre...
Oxidative phosphorylation takes place in the inner mitochondrial membrane.
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Which of these statements is incorrect?a)Enzymes of TCA cycle are present in mitochondrial matrixb)Glycolysis occur s in cytosolc)Oxidative phosphorylation takes place in outer mitochondrial membraned)Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atomsCorrect answer is option 'C'. Can you explain this answer?
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Which of these statements is incorrect?a)Enzymes of TCA cycle are present in mitochondrial matrixb)Glycolysis occur s in cytosolc)Oxidative phosphorylation takes place in outer mitochondrial membraned)Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atomsCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of these statements is incorrect?a)Enzymes of TCA cycle are present in mitochondrial matrixb)Glycolysis occur s in cytosolc)Oxidative phosphorylation takes place in outer mitochondrial membraned)Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atomsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of these statements is incorrect?a)Enzymes of TCA cycle are present in mitochondrial matrixb)Glycolysis occur s in cytosolc)Oxidative phosphorylation takes place in outer mitochondrial membraned)Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atomsCorrect answer is option 'C'. Can you explain this answer?.
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