Import Question JSON

Current Question (ID: 11510)

Question:

The process used in conversion of Pyruvate to Acetyl CoA is

Options:

1. Oxidative dehydration
2. Oxidative decarboxylation
3. Oxidative phosphorylation
4. Reductive phosphorylation

Solution:

Pyruvate, the end product of glycolysis, is converted to acetyl CoA before entering the citric acid cycle (also known as the Krebs cycle). This conversion occurs in the mitochondrial matrix and involves a multi-enzyme complex called the pyruvate dehydrogenase complex (PDC). During the conversion, pyruvate is first oxidized by pyruvate dehydrogenase, which removes a molecule of CO₂ and generates NADH. The resulting molecule is called an acetyl group. The acetyl group is then combined with coenzyme A (CoA) to form acetyl CoA. The process is called oxidative decarboxylation because it involves the removal of a CO₂ molecule and the oxidation of pyruvate. The formation of acetyl CoA is a crucial step in cellular respiration because it links glycolysis to the citric acid cycle. Acetyl CoA enters the citric acid cycle and is further oxidized to generate ATP and other reduced coenzymes.

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
}