Online Lecturer Biology Preparation

10/01/2026

خیبرپختونخوا کے مختلف اضلاع میں ہیڈ ماسٹر اور سبجیکٹ سپشلسٹ خالی آسامیوں کی تفصیلات جاری.

11/06/2025

01/06/2025

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20/05/2025

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03/05/2025

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02/05/2025

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13/04/2025

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13/04/2025

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18/03/2025

PPSC Past Solved Questions:

1. Which of the following is the basic unit of life?
a) Atom
b) Molecule
c) Cell
d) Tissue
Answer: c) Cell**

2. Photosynthesis primarily occurs in which part of the plant?
a) Roots
b) Stem
c) Leaves
d) Flowers
*Answer: c) Leaves

3. **Which organelle is known as the "powerhouse of the cell"?
a) Nucleus
b) Ribosome
c) Mitochondria
d) Golgi Apparatus
**Answer: c) Mitochondria**

4. **DNA replication occurs during which phase of the cell cycle?**
a) G1 phase
b) S phase
c) G2 phase
d) M phase
**Answer: b) S phase**

5. **Which of the following is NOT a function of the liver?**
a) Detoxification
b) Protein synthesis
c) Blood filtration
d) Insulin production
**Answer: d) Insulin production**

6. **The process by which plants lose water v***r through their leaves is called:**
a) Transpiration
b) Respiration
c) Photosynthesis
d) Osmosis
**Answer: a) Transpiration**

7. **Which of the following is a greenhouse gas?**
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
**Answer: c) Carbon dioxide**

8. **The study of fossils is known as:**
a) Paleontology
b) Genetics
c) Ecology
d) Taxonomy
**Answer: a) Paleontology**

9. **Which blood group is known as the universal donor?**
a) A
b) B
c) AB
d) O
**Answer: d) O**

10. **Which of the following is responsible for carrying oxygen in the blood?**
a) White blood cells
b) Platelets
c) Red blood cells
d) Plasma
**Answer: c) Red blood cells**

11. **The process of converting light energy into chemical energy in plants is called:**
a) Respiration
b) Photosynthesis
c) Fermentation
d) Transpiration
**Answer: b) Photosynthesis**

12. **Which of the following is a function of the nervous system?**
a) Transporting oxygen
b) Regulating body temperature
c) Transmitting nerve impulses
d) Producing hormones
**Answer: c) Transmitting nerve impulses**

13. The smallest unit of an element that retains its properties is called:
a) Molecule
b) Atom
c) Cell
d) Ion
**Answer: b) Atom**

14. Which of the following is a characteristic of prokaryotic cells?
a) Presence of a nucleus
b) Membrane-bound organelles
c) Lack of a nucleus
d) Large size
Answer: c) Lack of a nucleus

15. The hormone responsible for regulating blood sugar levels is:
a) Insulin
b) Adrenaline
c) Thyroxine
d) Estrogen
**Answer: a) Insulin**

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