The Fundamental Unit of Life (9 Science)
The cell is the fundamental unit of life, and all living organisms are composed of one or more cells. Understanding cell structure and function is crucial
TL;DR: The cell is the fundamental unit of life, and all living organisms are composed of one or more cells. Understanding cell structure and function is cru…
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The cell is the fundamental unit of life, and all living organisms are composed of one or more cells. Understanding cell structure and function is crucial
The Fundamental Unit of Life MCQs with Answers & Explanations
Q1. Who discovered the cell?
- Louis Pasteur
- Robert Hooke ✓ (correct)
- Antonie van Leeuwenhoek
- Schleiden
Q2. The cell membrane is made of:
- Cellulose
- Proteins and lipids ✓ (correct)
- Carbohydrates only
- DNA
Q3. Which of the following organelles is found only in plant cells?
- Mitochondria
- Nucleus
- Chloroplast ✓ (correct)
- Ribosome
Q4. The powerhouse of the cell is the:
- Nucleus
- Chloroplast
- Mitochondria ✓ (correct)
- Ribosome
Q5. The control center of the cell is:
- Mitochondria
- Nucleus ✓ (correct)
- Chloroplast
- Endoplasmic reticulum
Q6. Prokaryotic cells lack:
- Cell membrane
- Cytoplasm
- Nucleus ✓ (correct)
- Ribosomes
Q7. The site of protein synthesis in the cell is:
- Nucleus
- Mitochondria
- Ribosome ✓ (correct)
- Golgi apparatus
Q8. The cell wall in plant cells is made of:
- Proteins
- Lipids
- Cellulose ✓ (correct)
- Carbohydrates
Q9. Which organelle modifies and packages proteins?
- Rough endoplasmic reticulum
- Golgi apparatus ✓ (correct)
- Lysosome
- Chloroplast
Q10. Lysosomes are known as the suicide sacs of the cell because they:
- Store energy
- Synthesize proteins
- Contain digestive enzymes that can destroy the cell ✓ (correct)
- Transport materials
Frequently Asked Questions
What is the difference between prokaryotic and eukaryotic cells?
Prokaryotic cells lack a membrane-bound nucleus and organelles, while eukaryotic cells have both.
Why is the nucleus called the control center of the cell?
The nucleus contains DNA which directs all cellular activities including protein synthesis and cell division.
More 9 Science MCQs
- Light Reflection and Refraction
- Electricity
- Acids Bases and Salts
- Life Processes
- Carbon and its Compounds
- Metals and Non-metals
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