Tissues MCQs Quiz | Class 9
Class IX Science (Code 086), Unit II: Organization in the Living World. Topic: Definition; role in multicellular organisms. Attempt these 10 MCQs to test your understanding of tissues and their significance, then submit to check your score and download the PDF answer key.
Topic Overview: Tissues
In biology, a tissue is defined as a group of cells that are similar in structure and work together to perform a particular function. This organization allows multicellular organisms to perform complex tasks efficiently. The study of tissues is known as Histology.
Role in Multicellular Organisms
Unlike unicellular organisms where a single cell performs all basic functions, multicellular organisms have millions of cells. Tissues provide a structural framework and functional efficiency through the division of labor.
- Specialization: Specific groups of cells carry out specific functions (e.g., muscle cells contract for movement, nerve cells carry messages).
- Organization: Cells form tissues, tissues form organs, organs form organ systems, and finally the organism.
- Efficiency: Because cells are clustered to perform a specific task, they do it more efficiently than if they were isolated.
Plant vs. Animal Tissues
| Feature | Plant Tissues | Animal Tissues |
|---|---|---|
| Mobility | Stationary (need support) | Mobile (move for food/shelter) |
| Energy | Less energy required | More energy required |
| Nature | Many are dead (supportive) | Most are living |
Quick Revision Notes
- Definition: Group of similar cells + common origin + specific function.
- Utility: Maximizes efficiency through specialization.
- Hierarchy: Cell → Tissue → Organ → Organ System → Organism.
Extra Practice Questions
- What is the term for the study of tissues? (Histology)
- Do plants and animals have the same types of tissues? (No)
- Name a tissue responsible for movement in humans. (Muscular tissue)
- What tissue transports water in plants? (Xylem)
- Are all tissues in plants living? (No, some like cork are dead)
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