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Question

Cells having dense cytoplasm and large nucleus are called


A

Simple Tissue

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B

Permanent Tissue

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C

Compound Tissue

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D

Meristematic Tissue

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Solution

The correct option is D

Meristematic Tissue


The correct option is D:

Explanation of the correct option:

  1. Meristematic tissues are undifferentiated cells which form the building blocks of specialized plant structures.
  2. They contain a large nucleus devoid of the vacuole. There is no intercellular space between cells.
  3. The place where these cells exist is called the meristem.
  4. Meristematic tissue has the potential to actively divide and produce new cells. Hence, they have dense cytoplasm and a large nucleus.
  5. absence of intercellular spaces.
  6. The cell wall is thin, elastic, and made of cellulose.

Explanation of incorrect options:

Option A:

  1. A simple tissue is a group of cells composed of only one type of cell that performs the same or similar functions.
  2. Simple tissues found in plants are parenchyma, collenchyma, and sclerenchyma.

Option B:

  1. Permanent tissue is made of meristematic cells, which have a definite form and shape and have lost the ability to divide and differentiate.
  2. They are of three types: Simple permanent tissue (A), Complex permanent tissue (B), and Special permanent tissue (C).
  3. These tissues have intercellular spaces.

Option C:

  1. Compound tissue usually contains more than one type of cell and is concentrated on the vascular parts of the plant.
  2. Xylem and phloem are the two compound tissues found in the plant body.
  3. The main function of the compound tissues is the conduction of water and minerals. In addition, they provide structural support to the plant.
  4. Xylem – Xylem is responsible for the transportation of water and minerals from roots to the leaves of the plant. The four types of cells in the xylem are vessels, tracheids, xylem fibers, and xylem parenchyma.
  5. Phloem – Phloem is responsible for the transportation of nutrients from leaves to the rest of the plant. The four types of cells in the phloem are sieve cells, companion cells, phloem fibers, and phloem parenchyma.

Final answer: - Cells having dense cytoplasm and large nucleus are called meristematic tissues.


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