CBSE Class 9 > Class 9 Notes > Science > Unit Test: Tissues
Unit Test: Tissues
Time: 1 hour
M.M. 30
Attempt all questions.
Question numbers 1 to 5 carry 1 mark each.
Question numbers 6 to 8 carry 2 marks each.
Question numbers 9 to 11 carry 3 marks each.
Question number 12 & 13 carry 5 marks each
Q1. What is a tissue? (1 Mark)
Q2. Where is apical meristem found? (1 Mark)
Q3. Which tissue forms the husk of a coconut? (1 Mark)
Q4. Name the tissue responsible for movement in our body. (1 Mark)
Q5. Which tissue forms the inner lining of our mouth? (1 Mark)
Q6. Why do meristematic cells lack vacuoles? (2 Marks)
Q7. State two differences between simple and complex permanent tissues in plants. (2 Marks)
Q8. Why does the epidermis of desert plants have a thick waxy coating? (2 Marks)
Q9. Describe the structure and function of collenchyma tissue. (3 Marks)
Q10. Differentiate between parenchyma, collenchyma, and sclerenchyma based on their cell wall. (3 Marks)
Q11. Explain the role of xylem and its components. (3 Marks)
Q12. Explain the structure and function of different types of epithelial tissues in animals. (5 Marks)
Q13. Differentiate between striated, smooth, and cardiac muscles based on structure, location, and control. (5 Marks)
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FAQs on Unit Test: Tissues
| 1. What are the main types of tissues found in plants and animals? |  |
Ans. In plants, the main types of tissues are meristematic and permanent tissues. Meristematic tissues are responsible for growth and are found in regions like roots and shoots. Permanent tissues can be further classified into simple tissues, such as parenchyma, collenchyma, and sclerenchyma, and complex tissues like xylem and phloem. In animals, the primary types of tissues include epithelial, connective, muscle, and nervous tissues, each serving distinct functions in the body.
| 2. How do plant tissues differ from animal tissues in structure and function? | |
Ans. Plant tissues are generally more rigid and structured due to the presence of cell walls, which provide support and protection. For example, xylem and phloem in plants are specialized for transporting water, nutrients, and food. In contrast, animal tissues lack cell walls and are more flexible, allowing for a range of functions such as movement (muscle tissue) and communication (nervous tissue). Additionally, animal tissues often have a more complex organization due to the need for diverse functions in a dynamic environment.
| 3. What role do meristematic tissues play in plant growth? | |
Ans. Meristematic tissues are crucial for the growth of plants as they contain undifferentiated cells that have the ability to divide and differentiate into various types of cells. These tissues are found in areas of active growth, such as the tips of roots and shoots, allowing for the elongation of these parts. This continuous division contributes to the overall growth of the plant, enabling it to adapt to its environment and increase its size.
| 4. Can you explain the significance of epithelial tissue in animals? | |
Ans. Epithelial tissue serves several important functions in animals, including protection, absorption, secretion, and sensation. It forms the outer layer of the skin, lining of organs, and cavities, acting as a barrier against pathogens and physical damage. Additionally, epithelial cells are involved in the absorption of nutrients in the digestive tract and play a key role in the secretion of hormones and enzymes. This versatility makes epithelial tissue essential for maintaining homeostasis in the body.
| 5. What are the differences between xylem and phloem in plants? | |
Ans. Xylem and phloem are both types of vascular tissues in plants, but they have different functions and structures. Xylem is responsible for the transport of water and dissolved minerals from the roots to the rest of the plant. It consists of tracheids and vessel elements that facilitate this movement. In contrast, phloem is responsible for transporting the products of photosynthesis, primarily sugars, from the leaves to other parts of the plant. Phloem consists of sieve tubes and companion cells, which work together to ensure efficient transport of nutrients.
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Apr 19, 2026 Last updated
Document Description: Unit Test: Tissues for Class 9 2026 is part of Science Class 9 preparation. The notes and questions for Unit Test: Tissues have been prepared according to the Class 9 exam syllabus. Information about Unit Test: Tissues covers topics like and Unit Test: Tissues Example, for Class 9 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Unit Test: Tissues.
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