Import Question JSON

Current Question (ID: 13455)

Question:

Water canal is lined by

Options:

1. Spongin fibres
2. Choanocytes
3. Collar cells
4. Both 2 and 3

Solution:

The water canal in sponges is lined by choanocytes, also known as collar cells. Choanocytes are specialized cells that have a collar-like structure surrounding a flagellum, which helps to create water currents and capture food particles. Collar cells are responsible for filtering and capturing small particles from the water, and they play a crucial role in the feeding and digestion processes of sponges. In some sponges, the walls of the water canal may also be reinforced with spongin fibers, which provide structural support. Therefore, both choanocytes and collar cells are responsible for lining the water canal in sponges.

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
}