NCERT  ·  Science  ·  Class IX  ·  Ch.5

The Fundamental Unit of Life
MCQ Master Series

Cell Theory · Prokaryote vs Eukaryote · Organelles · Osmosis · Cell Division

🎯 50 Questions
⏱ 28 min Suggested
📊 3 Tiers
🗂 5 Topics
⚡ Start Quiz 📊 Analytics
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Question Intelligence

Quiz Analytics

A data-driven breakdown of all 50 questions by difficulty, exam origin and topic distribution.

📈 Distribution Overview

50
Total Questions
CBSE Board
27
State Board
14
Olympiad Level
9

🗂 Topic Coverage

Cell Theory & Discovery
16%
Prokaryotic vs Eukaryotic
18%
Plant vs Animal Cell
16%
Cell Organelles & Functions
32%
Osmosis & Diffusion
18%
27
CBSE Board
14
State Board
9
Olympiad Level
Conceptual Framework

Key Concept Highlights

6 foundational pillars that power every question in this quiz. Understand these, and the answers follow naturally.

🔬
Cell Theory
All living organisms are made of cells (Schleiden & Schwann, 1839). The cell is the structural and functional unit of life. All cells arise from pre-existing cells (Virchow, 1855).
🦠
Prokaryote vs Eukaryote
Prokaryotes: no membrane-bound nucleus, no membrane-bound organelles (bacteria, blue-green algae). Eukaryotes: true nucleus with nuclear membrane, complex organelles (plant and animal cells).
🌿
Plant vs Animal Cell
Plant cell unique: cell wall (cellulose), large central vacuole, chloroplasts, plastids. Animal cell unique: centrioles, lysosomes prominent. Both: nucleus, mitochondria, ER, Golgi.
⚙️
Cell Organelles
Mitochondria (ATP/energy), Chloroplast (photosynthesis), Ribosome (protein synthesis), ER (transport highway), Golgi body (packaging), Lysosome (digestion), Vacuole (storage/turgor).
🧬
Nucleus
Control centre of the cell. Contains DNA organised as chromatin (→chromosomes during division). Nucleolus: site of ribosome synthesis. Nuclear pores: control material exchange.
💧
Osmosis & Diffusion
Diffusion: movement of particles from high to low concentration (no membrane). Osmosis: movement of water through semi-permeable membrane from dilute to concentrated solution. Turgor pressure maintains plant rigidity.
Pedagogical Value

Why MCQs Matter

Multiple-choice questions are not mere guessing games — they are the sharpest diagnostic tool available to a competitive exam aspirant.

~10%
of CBSE Class IX Science — organelle functions are the highest-tested area
Learning Outcomes

What You Will Learn

By completing this quiz set you will have exercised all the following competencies.

01 State the postulates of the cell theory and name the scientists associated
02 Compare prokaryotic and eukaryotic cells using at least four features
03 Draw and label a plant cell and an animal cell identifying at least eight organelles
04 State the function of each organelle: mitochondria, chloroplast, Golgi, lysosome, vacuole
05 Define osmosis and predict the direction of water movement in a given scenario
06 Explain plasmolysis and its reversibility with a diagram
Exam Preparation

Strategy & Preparation Tips

4 evidence-based strategies to maximise your score in CBSE Boards and JEE.

Step 01
Organelle One-Liner Card
One function per organelle on a flashcard. Most missed: Golgi = packaging and dispatch; Lysosome = "suicidal bags" (autolysis); Ribosome = protein factory. These exact phrases appear in CBSE papers.
Step 02
Plant vs Animal Cell Table
Two-column table with 6 differences. CBSE gives 3 marks for this comparison every alternate year. Know both "present in plant only" and "present in animal only."
Step 03
Osmosis Scenario MCQs
"A cell is placed in a hypertonic/hypotonic/isotonic solution — what happens?" Hypotonic → cell swells/bursts (turgid). Hypertonic → cell shrinks (plasmolysis). Isotonic → no change.
Step 04
Prokaryote vs Eukaryote
One key fact: prokaryotes have 70S ribosomes; eukaryotes have 80S. Mitochondria and chloroplasts also have 70S ribosomes — used as evidence for endosymbiotic theory in higher classes.

Ready to Test Your Mastery?

50 questions  ·  Elapsed timer  ·  Instant scored results

⚡ Begin The Fundamental Unit of Life Quiz
🎯 Knowledge Check

Science — The Fundamental Unit Of Life

50 Questions Class 9 MCQs
1
Who discovered the cell?
2
Which instrument is used to study cells?
3
The basic structural and functional unit of life is:
4
Cell theory was proposed by:
5
Who stated that all cells arise from pre-existing cells?
6
The outermost covering of an animal cell is:
7
Which structure is present in plant cells but absent in animal cells?
8
The plasma membrane is:
9
Movement of water through a selectively permeable membrane is called:
10
The movement of molecules from a region of higher concentration to lower concentration is:
11
Which of the following cell organelles contains digestive enzymes?
12
Which cell organelle is called the "powerhouse of the cell"?
13
ATP stands for:
14
The nucleus was discovered by:
15
Which part of the cell contains hereditary material?
16
Chromosomes are composed mainly of:
17
The jelly-like substance inside the cell is:
18
Which organelle synthesizes proteins?
19
Endoplasmic reticulum helps in:
20
Rough endoplasmic reticulum appears rough because of:
21
Smooth endoplasmic reticulum is involved in:
22
The packaging and dispatching unit of the cell is:
23
Which plastids contain chlorophyll?
24
The colour of ripe tomatoes is due to:
25
Which plastids store food materials?
26
The membrane surrounding the nucleus is called:
27
The fluid present inside the nucleus is known as:
28
Which cell organelle is known as the "suicidal bag" of the cell?
29
Which of the following is absent in prokaryotic cells?
30
The genetic material in prokaryotes is found in:
31
Which of the following organisms has prokaryotic cells?
32
Vacuoles in plant cells are generally:
33
The membrane surrounding a vacuole is called:
34
Which cell organelle is directly involved in photosynthesis?
35
Which of the following cell structures is common to both plant and animal cells?
36
Which of the following will occur when a cell is placed in a hypotonic solution?
37
Raisins swell when kept in water because of:
38
If a plant cell is placed in a hypertonic solution, it:
39
Which of the following statements about mitochondria is correct?
40
Which organelle also possesses its own DNA besides mitochondria?
41
Which of the following organelles is absent in mature mammalian red blood cells?
42
Which of the following sequences correctly represents the levels of organization?
43
Which organelle is mainly responsible for detoxifying drugs and poisons in liver cells?
44
Which of the following statements is incorrect?
45
Which cell organelle forms lysosomes?
46
A cell containing a cell wall, chloroplasts and a large central vacuole is most likely a:
47
A scientist observed a cell with a nucleoid region and ribosomes but no membrane-bound organelles. The cell is:
48
During the breakdown of ATP, the reaction can be represented as:
49
Which of the following combinations is correctly matched?
50
A plant cell and an animal cell are placed in pure water. Which statement is correct?
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🎓 Class 9 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
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Frequently Asked Questions

The nucleus contains chromosomes composed of DNA and proteins, controlling heredity and cell activities.

In prokaryotic cells, nucleoid is an undefined region containing genetic material without a membrane.

Mitochondria produce energy in the form of ATP, through the process of cellular respiration.

Because it generates energy needed for metabolic processes in the form of ATP.

Ribosomes are organelles responsible for protein synthesis.

The ER helps in synthesis and transport of proteins and lipids within the cell.

Rough endoplasmic reticulum (with ribosomes) and smooth endoplasmic reticulum (without ribosomes).

It modifies, sorts, and packages proteins and lipids for transport inside or outside the cell.

Lysosomes are sac-like structures containing digestive enzymes that break down waste materials.

Because they can digest their own cell when it is damaged or old.

Plant cells have cell walls and chloroplasts; animal cells do not.

Chromatin fibers are thin threads in the nucleus that condense to form chromosomes during cell division.

Centrosomes are organelles near the nucleus that help in spindle formation during cell division.

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    ACADEMIA AETERNUM तमसो मा ज्योतिर्गमय · Est. 2025
    Sharing this chapter
    The Fundamental Unit Of Life | Science Class 9 | Academia Aeternum
    The Fundamental Unit Of Life | Science Class 9 | Academia Aeternum — Complete Notes & Solutions · academia-aeternum.com
    🎓 Class 9 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
    Share on
    WhatsApp
    Telegram
    X / Twitter
    Facebook
    Instagram
    Threads
    Pinterest
    LinkedIn
    Quora
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    Reddit
    Email
    academia-aeternum.com/class-9/science/the-fundamental-unit-of-life/mcqs/ Copy link
    💡
    Exam tip: Sharing chapter notes with your study group creates a reinforcement loop. Teaching a concept is the fastest path to mastering it.

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