Import Question JSON

Current Question (ID: 13464)

Question:

The water canal system is found in:

Options:

1. Echinus
2. Sycon
3. Balanoglossus
4. Ascidia

Solution:

The water canal system is found in Sycon, which is a type of sponge. Sycon belongs to the phylum Porifera, which is the simplest and most primitive multicellular animal group. The water canal system is a characteristic feature of sponges, including Sycon, and it plays a critical role in their feeding and respiration. Water is drawn into the sponge through tiny pores called ostia, then circulated through a series of canals and chambers lined with specialized cells called choanocytes or collar cells, which help capture food particles from the water. Finally, the water is expelled from the sponge through a larger opening called the osculum. Echinus (sea urchin), Balanoglossus (acorn worm), and Ascidia (sea squirt) do not possess a water canal system like 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
}