Import Question JSON

Current Question (ID: 14657)

Question:

Complete the analogy with respect to reabsorption PCT: Glucose and amino acids:: DCT: _____

Options:

1. K⁺ and H⁺
2. H⁺ and HCO₃⁻
3. NaCl and HCO₃⁻
4. K⁺ and H₂O

Solution:

The analogy is between the substances that are reabsorbed in the proximal convoluted tubule (PCT) and those that are reabsorbed in the distal convoluted tubule (DCT). In the PCT, glucose and amino acids are actively reabsorbed into the bloodstream. In the DCT, sodium chloride (NaCl) and bicarbonate (HCO₃⁻) are reabsorbed. Option 1 (K⁺ and H⁺) is incorrect because potassium ions (K⁺) are actually secreted in the DCT, not reabsorbed. Hydrogen ions (H⁺) are also secreted in the DCT, but they are not the only substance that is reabsorbed. Option 2 (H⁺ and HCO₃⁻) is partially correct because hydrogen ions (H⁺) are indeed reabsorbed in the DCT, but they are not the only substance that is reabsorbed. Bicarbonate ions (HCO₃⁻) are also reabsorbed in the DCT. Option 4 (K⁺ and H₂O) is incorrect because although water (H₂O) is indeed reabsorbed in the DCT, potassium ions (K⁺) are secreted in the DCT, not reabsorbed.

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
}