Import Question JSON

Current Question (ID: 12439)

Question:

Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is

Options:

1. Xylem
2. Sclerenchyma
3. Collenchyma
4. Epidermis

Solution:

Collenchyma is a type of plant tissue that consists of living cells with irregularly thickened cell walls, especially at the corners where the cells meet. The thickening of the cell walls provides mechanical support to the plant, making it flexible and able to withstand bending and stretching. The cell walls of collenchyma cells are usually composed of cellulose, hemicellulose, and pectin, and they may also contain lignin in some cases. Option 1 is incorrect as xylem is a complex tissue responsible for water transport in plants and does not show angular wall thickening. Option 2 is incorrect as sclerenchyma is a type of plant tissue that consists of dead cells with thick, lignified cell walls, and does not show angular wall thickening. Option 4 is incorrect as epidermis is the outermost layer of cells in plant organs and does not typically provide mechanical support.

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
}