Import Question JSON

Current Question (ID: 14164)

Question:

The optimum pH for the enzyme salivary amylase is:

Options:

1. 4.5
2. 6.8
3. 7.3
4. 8.2

Solution:

Salivary amylase, also known as ptyalin, is an enzyme that is secreted by the salivary glands and begins the breakdown of starch and glycogen in the mouth. It works best at a slightly acidic to neutral pH range of 6.7 to 7.4. Option 1, '4.5,' is a pH more suitable for the activity of pepsin, an enzyme that works in the acidic environment of the stomach. Option 3, '7.3,' is closer to the pH of pancreatic enzymes that are secreted into the small intestine, but it is not the optimum pH for salivary amylase. Option 4, '8.2,' is a pH more suitable for the activity of enzymes that work in the alkaline environment of the small intestine, such as pancreatic lipase.

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
}