Past Paper 2025 9th Class Karachi Board Biology English Medium Subjective

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SECTION "B"

(SHORT-ANSWER QUESTIONS) MARKS: 24

NOTE: Attempt any EIGHT questions from this section. Each question carries Three (3) marks.

2. Name and define the basic divisions of Biology.

3. What is meant by Homologous and Analogous? Explain with examples.

4. Write Biological names of the following:

(i) Onion plant.

(ii) Mango plant

(iii) Neem plant

(iv) Frog

(v) Cat

(vi) House fly

5. Explain the term Hypothesis with the help of an example.

6. Define Conservation of Biodiversity.

7. Draw neat and labelled diagram of Animal or Plant cell.

---OR---

Draw neat and labelled diagram of Cardiac muscles.

8. Define the following terms:

(i) Diffusion

(ii) Osmosis

(iii) Facilitated diffusion

9. Define two basic ways of cell death in multicellular organisms.

10. Define Pulmonary circuit and Systematic circuit.

11. What is the role of root in transportation of water and minerals.

12. What disease are caused due to the deficiency of the following Vitamins:

(i) Vitamin K

(ii) Vitamin D

(iii) Vitamin A

13. Write a note on Light microscope.

---OR---

Write three differences between Theory and Law.

SECTION "C"

(DESCRIPTIVE-ANSWER QUESTIONS) Marks: 24

NOTE: Attempt any FOUR questions from this Section. Each question carries Six (6) marks.

14. What are plant tissues? Write their types and define any two.

15. Draw neat and labelled diagram of Mitochondria.

16. Define Mitosis, write its different stages, explain any two of them.

---OR---

Define Meiosis. Explain prophase and draw labelled diagram of it.

17. Write down two functions of each of the following:

(i) Oral cavity

(ii) Stomach

(iii) Liver

18. Write any six differences between Respiration and Photosynthesis in plants.

19. Explain Arteries, Veins and Capillaries.

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