Import Question JSON

Current Question (ID: 12509)

Question:

In between the vascular bundles, radially placed parenchymatous cells constitute

Options:

1. medullary rays
2. cortex
3. medulla
4. cortical rays

Solution:

In between the vascular bundles of a dicot stem, radially placed parenchymatous cells constitute the medullary rays. These rays are also referred to as pith rays, and they extend from the pith to the cortex. The medullary rays function to transport water, minerals, and organic materials horizontally across the stem. They also play a role in the storage of food and water, as well as in mechanical support. Therefore, the correct answer is option 1, medullary rays. The cortex is a tissue layer outside of the vascular bundles, and cortical rays are not typically found in dicot stems. The medulla refers to the central region of certain plant organs, such as stems or roots, where pith tissues are located.

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
}