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NEET Biology What is Living Questions with Answers | NCERT Based Practice Set


What is Living? - NEET Revision Notes

WHAT IS LIVING?

NEET Quick Revision Notes

1. Unique Characteristics of Living Organisms

Characteristic Living Organisms Non-Living Objects NEET Trick
Growth Internal Growth External Growth Not Defining
Reproduction Sexual / Asexual Absent Not Defining
Metabolism Present Absent Defining Feature
Cellular Organisation Present Absent Defining Feature
Consciousness Responds to Stimuli No Response Defining Feature

2. Master Mnemonic

GReMCC

G → Growth
Re → Reproduction
M → Metabolism
C → Cellular Organisation
C → Consciousness
Mnemonic Sentence:

"गुरु रे मन को चेताओ"

3. NEET Important Exceptions

Characteristic Exception
Growth Mountains, Sand Mounds Grow
Reproduction Mule, Worker Bee, Infertile Couples
Metabolism No Exception
Consciousness No Exception
Cellular Organisation No Exception
Growth and Reproduction are NOT defining properties.
Metabolism + Cellular Organisation + Consciousness = Defining Features of Life

4. Modes of Reproduction

Mode Example
Budding Hydra, Yeast
Fragmentation Filamentous Algae, Moss Protonema
True Regeneration Planaria
Spore Formation Fungi
BFTP

"बड़ा फास्ट टॉपर प्लान"

5. Metabolism

Metabolism = Sum Total of all Chemical Reactions occurring inside the body.

No Non-Living Object Exhibits Metabolism.
In Vitro Metabolic Reactions are Living Reactions, but NOT Living Organisms.

6. Consciousness

Ability to Sense Environment and Respond to Stimuli.

Stimulus
Light
Water
Temperature
Organisms
Pollutants
LWTOP

Light Water Temperature Organism Pollution

7. Defining Properties Flowchart

LIFE
↓
Metabolism
+
Cellular Organisation
+
Consciousness
↓
DEFINING FEATURES OF LIFE

8. Most Expected NEET Questions

Q1. Which characteristic is NOT a defining property?
Answer: Growth
Q2. Which characteristic is absent in non-living objects?
Answer: Metabolism
Q3. Sterile worker bee proves?
Answer: Reproduction is not defining.
Q4. Why is growth not defining?
Answer: Mountains and sand mounds also grow.
Q5. Defining property according to NCERT?
Answer: Consciousness

9. 10-Second NEET Formula

GR छोड़ो, MCC पकड़ो

GR MCC
Growth Metabolism
Reproduction Cellular Organisation
Not Defining Consciousness
NCERT Biology Chapter 1 • What is Living? • NEET Revision Sheet
Illustration showing defining characteristics of living organisms including metabolism, growth, reproduction, cellular organization, consciousness and environmental response for NEET Biology preparation.
NEET Biology Chapter 1 What is Living? NCERT-based practice questions covering metabolism, growth, reproduction and consciousness.

NEET Biology: What is Living? (NCERT Picks)

- Dr.Sanjaykumar Pawar 

1. Direct MCQs (Single Correct Option)

Q1. (Easy)

Which of the following is a defining feature of living organisms without any exception?

A. Growth
B. Reproduction
C. Metabolism
D. Movement

Answer: C

Q2. (Easy)

Growth in living organisms differs from non-living objects because it is

A. External only
B. Internal only
C. Due to accumulation on surface
D. Temporary

Answer: B

Q3. (PYQ Type)

Which of the following cannot be regarded as a defining property of living organisms?

A. Metabolism
B. Consciousness
C. Reproduction
D. Cellular organisation

Answer: C

NCERT Trick: Mule, sterile worker bee, infertile human couples do not reproduce.

Q4. (Moderate)

In unicellular organisms, reproduction is synonymous with

A. Respiration
B. Metabolism
C. Growth
D. Locomotion

Answer: C

Q5. (Easy)

Which organism reproduces by budding?

A. Planaria
B. Hydra
C. Moss protonema
D. Spirogyra

Answer: B

Q6. (Moderate)

Which one reproduces through regeneration?

A. Hydra
B. Yeast
C. Planaria
D. Amoeba

Answer: C

Q7. (Hard)

Isolated metabolic reactions performed in a test tube are

A. Living systems
B. Non-living systems
C. Neither living nor non-living but living reactions
D. Dead reactions

Answer: C

Q8. (PYQ Level)

Human beings are unique among organisms because they possess

A. Metabolism
B. Growth
C. Reproduction
D. Self-consciousness

Answer: D

2. Statement-Based Questions (Statement I & II)

Q9. (Moderate)

Statement I: Growth cannot be taken as a defining property of living organisms.

Statement II: Mountains and sand mounds also increase in size.

A. Both statements are true and II explains I
B. Both true but II does not explain I
C. I true, II false
D. I false, II true

Answer: A

Q10. (Moderate)

Statement I: Reproduction is not an all-inclusive defining feature of life.

Statement II: Sterile worker bees and mules do not reproduce.

A. Both true and II explains I
B. Both true but II does not explain I
C. I true, II false
D. I false, II true

Answer: A

Q11. (Hard)

Statement I: Metabolism is a defining feature of all living organisms.

Statement II: No non-living object exhibits metabolism.

A. Both true and II explains I
B. Both true but II does not explain I
C. I true, II false
D. Both false

Answer: A

Q12. (Hard)

Statement I: Cellular organisation is a defining feature of life.

Statement II: Isolated metabolic reactions in vitro are not living things.

A. Both true and II explains I
B. Both true but II does not explain I
C. I false, II true
D. Both false

Answer: A

3. Assertion and Reason (A & R)

Q13. (Easy)

Assertion: Living organisms respond to environmental stimuli.

Reason: Consciousness is a defining property of living organisms.

A. Both A and R true; R explains A
B. Both true but R does not explain A
C. A true, R false
D. A false, R true

Answer: A

Q14. (Moderate)

Assertion: Reproduction cannot be considered a defining feature of life.

Reason: Some living organisms are incapable of reproduction.

A. Both true; R explains A
B. Both true but R does not explain A
C. A true, R false
D. A false, R true

Answer: A

Q15. (Hard)

Assertion: Growth is not a defining property of living organisms.

Reason: Non-living objects can increase in size by accumulation of material on their surface.

A. Both true; R explains A
B. Both true but R does not explain A
C. A true, R false
D. Both false

Answer: A

Q16. (PYQ Type)

Assertion: Metabolism is the hallmark of living organisms.

Reason: Every metabolic reaction occurs only inside living cells.

A. Both true and R explains A
B. Both true but R does not explain A
C. A true, R false
D. Both false

Answer: C

(Metabolic reactions can be demonstrated in vitro.)

4. Match the Columns

Q17. (Easy)

Column I Column II
A. Planaria 1. Budding
B. Yeast 2. Regeneration
C. Hydra 3. Budding
D. Moss protonema 4. Fragmentation

Choose correct match:

A. A-2, B-1, C-3, D-4
B. A-1, B-2, C-3, D-4
C. A-2, B-3, C-1, D-4
D. A-3, B-1, C-2, D-4

Answer: A

Q18. (Moderate)

Column I Column II
A. Metabolism 1. Defining feature
B. Reproduction 2. Not all-inclusive
C. Consciousness 3. Response to stimuli
D. Growth 4. Not defining property

Correct option:

A. A-1, B-2, C-3, D-4
B. A-2, B-1, C-4, D-3
C. A-1, B-3, C-2, D-4
D. A-4, B-2, C-1, D-3

Answer: A

5. Diagram-Based Questions

Q19. (Easy)

Observe the diagram:

Yeast Cell
    |
  Bud

The mode of reproduction shown is

A. Binary fission
B. Regeneration
C. Budding
D. Fragmentation

Answer: C

Q20. (Moderate)

Observe:

Planaria
 ───────► Cut into pieces
          ↓
      New individuals

The phenomenon shown is

A. Budding
B. Regeneration
C. Binary fission
D. Sporulation

Answer: B

Q21. (Hard NCERT Pick)

Light  → Plant
Temperature → Plant
Water → Plant

The diagram illustrates

A. Metabolism
B. Reproduction
C. Consciousness and response to stimuli
D. Cellular organisation

Answer: C

NCERT One-Liners Most Asked in NEET

✅ Growth in living organisms = Internal

✅ Growth in non-living objects = External

✅ Reproduction is not an all-inclusive feature of life

✅ Metabolism = Sum total of all chemical reactions

✅ Human beings possess self-consciousness

✅ Metabolism + Cellular organisation = Defining feature of life forms

✅ Consciousness = Ability to sense and respond to stimuli

✅ Planaria → Regeneration

✅ Hydra & Yeast → Budding

✅ Moss protonema & filamentous algae → Fragmentation

NEET Challenge Question (Hard)

Which of the following combination represents all defining properties of living organisms according to NCERT?

A. Growth, Reproduction and Movement
B. Growth, Metabolism and Consciousness
C. Metabolism, Cellular Organisation and Consciousness
D. Reproduction, Growth and Consciousness

Answer: C ✅  



INTERNAL LINKS

The Living World Complete NCERT Notes

Biological Classification MCQs for NEET

Plant Kingdom NEET Question Bank

Animal Kingdom NCERT Practice Questions

Cell: The Unit of Life Important MCQs

Biomolecules NEET PYQs with Solutions

Structural Organisation in Animals Notes

NEET Biology Chapter-wise Question Bank

Complete NCERT Biology Revision Guide

NEET Biology Mock Test Series

NEET Previous Year Biology Questions

NCERT Biology Important Diagrams for NEET

Assertion and Reason Questions for NEET Biology

Match the Column Questions for Biology

Most Repeated Biology PYQs for NEET



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