Class 9 Science
Chapters: The Fundamental Unit of Life (Cell) and Tissues
Total Marks: 40
Time: 1.5 Hours
Instructions:
1. All questions are compulsory.
2. Marks are indicated against each question.
3. Draw diagrams wherever necessary.
Question Paper
Section A: Multiple Choice Questions (MCQs) (1 × 5 = 5 Marks)
1. Which of the following is not a function of the plasma membrane?
a) Protects the cell
b) Maintains cell shape
c) Allows substances to enter and leave the cell
d) Controls cell division
2. Which of the following is an example of simple permanent tissue?
a) Collenchyma
b) Xylem vessels
c) Phloem fibers
d) Meristematic tissue
3. Which organelle is known as the “powerhouse of the cell”?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Endoplasmic reticulum
4. In plants, stomata are present in the:
a) Xylem
b) Epidermis
c) Phloem
d) Cortex
5. Which tissue is responsible for the transport of water in plants?
a) Phloem
b) Parenchyma
c) Xylem
d) Collenchyma
Section B: Assertion and Reasoning Questions (1 × 3 = 3 Marks)
For the following questions, choose the correct option:
a) Both Assertion (A) and Reason (R) are true, and R is the correct explanation of
A.
b) Both Assertion (A) and Reason (R) are true, but R is not the correct
explanation of A.
c) Assertion (A) is true, but Reason (R) is false.
d) Assertion (A) is false, but Reason (R) is true.
6. Assertion (A): Mitochondria are absent in prokaryotic cells.
Reason (R): Prokaryotic cells do not perform cellular respiration.
7. Assertion (A): Xylem transports water in plants.
Reason (R): Xylem contains sieve tubes that transport water and minerals.
8. Assertion (A): Smooth endoplasmic reticulum is involved in the synthesis of
lipids.
Reason (R): Ribosomes are attached to the surface of smooth endoplasmic reticulum.
Section C: Short Answer Questions (2 Marks Each) (2 × 4 = 8 Marks)
9. Define plasmolysis and give an example.
10. Write two differences between permanent and meristematic tissues.
11. Why is the nucleus called the control center of the cell?
12. State the function of guard cells in plants.
Section D: Short Answer Questions (3 Marks Each) (3 × 5 = 15 Marks)
13. Explain the structure and function of the Golgi apparatus.
14. Describe the characteristics and function of parenchyma tissue in plants.
15. Explain the difference between prokaryotic and eukaryotic cells.
16. Draw a neat and labeled diagram of a plant cell.
17. Why are xylem and phloem called complex tissues? Explain briefly.
Section E: Long Answer Questions (5 Marks Each) (5 × 2 = 10 Marks)
18. Explain in detail the structure of the plasma membrane. How does it
help in the transport of substances across the cell?
19. Describe the different types of epithelial tissues in animals, along with
their functions and locations.
