Import Question JSON

Current Question (ID: 12450)

Question:

Phloem parenchyma is absent in most of the

Options:

1. Dicotyledons
2. Monocotyledons
3. Desert plants
4. None of the above

Solution:

Phloem parenchyma is generally absent in most monocotyledonous plants. Monocotyledons, also known as monocots, are a class of flowering plants characterized by having a single cotyledon (embryonic leaf) in their seed. Phloem parenchyma refers to the type of ground tissue composed of living cells associated with the phloem, which is responsible for the transport of organic nutrients such as sugars in plants. In most monocots, the phloem is composed of sieve tube elements and companion cells, without well-developed phloem parenchyma cells. Dicotyledons, or dicots, on the other hand, usually have phloem parenchyma cells associated with their phloem tissue. Desert plants, or xerophytes, may have various adaptations to reduce water loss, but the absence of phloem parenchyma is not necessarily limited to desert plants and is more commonly observed in monocots.

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
}