Import Question JSON

Current Question (ID: 13503)

Question:

Which of the following helps in excretion and osmoregulation in Flatworms

Options:

1. Flame cells
2. Nephridia
3. Malphigian tubules
4. Green glands

Solution:

Flame cells are specialized excretory cells found in flatworms (Phylum Platyhelminthes) that help in excretion and osmoregulation. These cells are found in the protonephridia, which is the primitive excretory system in flatworms. The flame cells are so called because they have a tuft of cilia that beat in a coordinated manner, creating a flickering flame-like appearance. This motion helps to draw fluid from the body cavity into the protonephridial tubules, where waste products are filtered out and expelled through an opening called the nephridiopore. Flame cells are an important adaptation for life in aquatic environments, where excess water and waste products must be constantly eliminated from the body.

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
}