Import Question JSON

Current Question (ID: 11580)

Question:

FADH₂ is oxidized by

Options:

1. Complex I
2. Complex II
3. Complex III
4. Complex IV

Solution:

FADH₂ is oxidized by Complex II in the electron transport chain. Complex II, also known as succinate dehydrogenase complex, receives electrons from FADH₂ and passes them on to ubiquinone (Coenzyme Q) without contributing to the proton gradient across the inner mitochondrial membrane. In contrast, Complex I receives electrons from NADH and contributes to the proton gradient by pumping protons from the mitochondrial matrix into the intermembrane space. Complex III and Complex IV also contribute to the proton gradient and use cytochromes to transfer electrons to oxygen, the final electron acceptor.

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}