Import Question JSON

Current Question (ID: 12631)

Question:

Bacterial flagellum is composed of

Options:

1. Basal body, axoneme and centrosome
2. Basal body, hook and filament
3. Axoneme, basal body and tubulin protein
4. Centriole, hook and axoneme

Solution:

Bacterial flagellum is a long, whip-like structure that protrudes from the surface of bacteria and enables them to move. It is composed of three main parts: basal body, hook, and filament. The basal body is embedded in the cell wall and membrane of the bacterium and anchors the flagellum to the cell. It is composed of a series of rings that rotate to drive the movement of the flagellum. The hook connects the basal body to the filament and allows the filament to rotate. The hook is flexible and allows the filament to move in a corkscrew motion, propelling the bacterium through its environment. The filament is the long, helical structure that extends from the hook and is composed of a protein called flagellin. The filament rotates to generate the propulsion force that drives the movement of the bacterium.

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
}