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Mind Map: Tissues in Action
The document Mind Map: Tissues in Action is a part of the Class 9 Course Science Class 9 New NCERT 2026-27 (New Syllabus).
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| 1. What are the main types of plant tissues? |  |
Ans. The main types of plant tissues are meristematic tissues and permanent tissues. Meristematic tissues are responsible for growth and are found in regions of the plant where growth occurs, such as the tips of roots and shoots. Permanent tissues are further divided into simple tissues (such as parenchyma, collenchyma, and sclerenchyma) and complex tissues (such as xylem and phloem), which have specific functions in the plant.
| 2. How do animal tissues differ from plant tissues? | |
Ans. Animal tissues differ from plant tissues in terms of structure and function. Animal tissues are generally more varied and include four main types: epithelial, connective, muscle, and nervous tissues. Epithelial tissues cover body surfaces and line cavities, connective tissues support and bind other tissues, muscle tissues are responsible for movement, and nervous tissues transmit signals. In contrast, plant tissues primarily focus on growth, support, and transport of substances.
| 3. What is the role of xylem in plants? | |
Ans. The role of xylem in plants is to transport water and dissolved minerals from the roots to the rest of the plant. Xylem consists of vessel elements and tracheids, which facilitate the efficient movement of water through capillary action and cohesion. Additionally, xylem provides structural support to the plant, contributing to its overall stability.
| 4. What functions do epithelial tissues perform? | |
Ans. Epithelial tissues perform several essential functions, including protection, absorption, secretion, and sensation. They form a protective barrier on body surfaces and cavities, facilitate the absorption of nutrients in the digestive tract, secrete various substances like hormones and enzymes, and contain sensory cells that help in detecting changes in the environment.
| 5. Why are meristematic tissues significant for plants? | |
Ans. Meristematic tissues are significant for plants as they are responsible for growth and the formation of new cells. These tissues are undifferentiated and can divide continuously, allowing plants to grow in height and girth. The presence of meristematic tissues at the tips of roots and shoots enables plants to adapt to their environment and regenerate damaged parts.
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Apr 25, 2026 Last updated
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