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PPT: Tissues in Action
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FAQs on PPT: Tissues in Action
| 1. What are the four main types of tissues found in plants? |  |
Ans. The four main types of tissues in plants are meristematic tissue, permanent tissue, vascular tissue, and epidermal tissue. Meristematic tissue is responsible for growth, while permanent tissue is involved in various functions like storage, support, and photosynthesis. Vascular tissue includes xylem and phloem, which are crucial for transporting water, nutrients, and food. Epidermal tissue serves as a protective layer for the plant.
| 2. How do animal tissues differ from plant tissues? | |
Ans. Animal tissues differ from plant tissues in several ways. While plant tissues are primarily classified into meristematic and permanent types, animal tissues are categorised into four main types: epithelial, connective, muscular, and nervous tissues. Epithelial tissue covers body surfaces and lines cavities, connective tissue supports and binds other tissues, muscular tissue facilitates movement, and nervous tissue transmits impulses for coordination and response.
| 3. What is the role of xylem in plants? | |
Ans. Xylem is a type of vascular tissue in plants that is responsible for the transport of water and dissolved minerals from the roots to other parts of the plant. It also provides structural support due to the presence of lignin in its cell walls, which helps the plant maintain its upright position.
| 4. What are the characteristics of epithelial tissue? | |
Ans. Epithelial tissue has several key characteristics: it consists of closely packed cells with minimal intercellular space, is avascular (lacking blood vessels), has a high regenerative capacity, and forms protective barriers. Epithelial tissue can be classified based on the number of layers (simple or stratified) and cell shape (squamous, cuboidal, or columnar), serving various functions such as protection, absorption, and secretion.
| 5. What is the significance of meristematic tissue in plants? | |
Ans. Meristematic tissue is significant in plants as it is responsible for growth and the formation of new cells. It comprises undifferentiated cells that can divide repeatedly, allowing for the elongation of roots and shoots. This tissue is crucial for the plant's ability to adapt to its environment and continue growing throughout its life cycle.
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Apr 25, 2026 Last updated
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Document Description: PPT: Tissues in Action for Class 9 2026 is part of Science Class 9 New NCERT 2026-27 (New Syllabus) preparation. The notes and questions for PPT: Tissues in Action have been prepared according to the Class 9 exam syllabus. Information about PPT: Tissues in Action covers topics like and PPT: Tissues in Action Example, for Class 9 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for PPT: Tissues in Action.
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