Which of the following is CORRECT regarding plant tissue?

RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Anatomy and Physiology

Easy

Appeared in: RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Explanation

Meristematic tissues are composed of undifferentiated cells that are in a state of continuous division (mitosis).
This active cell division is the fundamental process behind the growth of a plant, both in length (primary growth) and in diameter (secondary growth).
These tissues are strategically located in the growing points of the plant, such as the tips of shoots and roots (apical meristems) and the vascular cambium.

Option A: This statement is incorrect. Vascular tissue, which is responsible for transport, is composed of xylem and phloem.
Option B: This statement incorrectly categorizes xylem and phloem. Because they are made of multiple different cell types working together, they are classified as complex permanent tissues.
Option D: This statement is incorrect. Parenchyma, collenchyma, and sclerenchyma are types of simple permanent tissue because each is composed of only one type of cell.

Visual 1: Flowchart: A visual chart illustrating the classification of plant tissues, starting from the main division of Meristematic and Permanent, and branching into their respective sub-types (Simple, Complex, etc.).
Visual 2: Diagram: An anatomical drawing of a plant, highlighting the locations of apical meristem (at the root and shoot tips) and lateral meristem (cambium) to show where growth occurs.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification and function of plant tissues as background academic context rather than a clinical decision trigger.
Understanding the different types of plant tissues is fundamental to the fields of botany, agriculture, and horticulture.
The concept of meristematic tissue is practically applied in plant propagation techniques such as taking cuttings, grafting, and micropropagation (tissue culture), all of which rely on the ability of these cells to divide and differentiate.
What if the question was about animal tissues? The answer would involve the four main types: epithelial, connective, muscle, and nervous tissue, each with its own unique structure and function, completely different from plant classifications.

How to Approach the Question

First, identify the core concept of the question, which is the classification of plant tissues.
Recall the two primary categories: Meristematic (for growth) and Permanent (differentiated for function).
Remember that Permanent tissues are further divided into Simple (composed of one cell type) and Complex (composed of multiple cell types).
Systematically evaluate each option against this classification framework.
Option A incorrectly groups simple tissues under the 'vascular' category. Option B incorrectly calls complex tissues 'simple'. Option D incorrectly calls simple tissues 'complex'.
Recognize that Option C provides a correct definition for the function of meristematic tissue, aligning perfectly with the foundational principles of plant biology.

Concept Tested & Keywords

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