Import Question JSON

Current Question (ID: 11590)

Question:

Which of the following processes makes direct use of oxygen?

Options:

1. Glycolysis
2. Fermentation
3. Kreb's citric acid cycle
4. Electron transport

Solution:

The process that directly uses oxygen is the electron transport chain, which is the fourth stage of cellular respiration. During electron transport, oxygen acts as the final electron acceptor, combining with hydrogen ions to form water. This process generates a large amount of ATP, which is used to power cellular processes. Therefore, option 4, i.e., Electron transport, makes direct use of oxygen. Glycolysis and fermentation are the first two stages of cellular respiration, which occur in the absence of oxygen. The Kreb's citric acid cycle, which is also known as the citric acid or TCA cycle, occurs in the presence of oxygen, but it does not directly use oxygen. It uses the products of glycolysis to produce more ATP, which is used to power cellular processes.

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
}