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Kingdom Plantae and Animalia Explained for NEET | Easy Biology Notes, Key Features & Comparison

 🌿 KINGDOM PLANTAE vs ANIMALIA 🐾


Diagram comparing Kingdom Plantae and Animalia showing plants with chlorophyll and cell wall versus animals with heterotrophic nutrition and no cell wall.
Comparison of Kingdom Plantae and Kingdom Animalia showing key biological differences for NEET revision.
 

- Dr.Sanjaykumar pawar

KINGDOM PLANTAE 

Kingdom Plantae includes all plant-like organisms that are eukaryotic (true nucleus present) and mostly contain chlorophyll, which helps them make food by photosynthesis. Because of chlorophyll, most plants are autotrophic (self-feeding).

Some plants are exceptions and show heterotrophic nutrition:

  • Insectivorous plants (trap insects for nutrients)
    • Example: ,
  • Parasitic plants (depend on other plants for food)
    • Example:

Plant cells have:

  • A true nucleus (eukaryotic cell)
  • Chloroplasts (for photosynthesis)
  • A cell wall made mainly of cellulose (gives rigidity and protection)

Plantae includes five major groups:

  • Algae
  • Bryophytes
  • Pteridophytes
  • Gymnosperms
  • Angiosperms

A very important concept in plants is alternation of generations, meaning:

  • Plants have two life phases:
    • Sporophyte (2n, diploid stage) → produces spores
    • Gametophyte (n, haploid stage) → produces gametes
  • These two phases alternate in the life cycle
  • Their dominance varies in different plant groups (sometimes one is dominant, sometimes both are independent)

KINGDOM ANIMALIA (Beginner-friendly NEET Notes)

Kingdom Animalia includes all multicellular, eukaryotic animals that do not have a cell wall.

Key characteristics:

  • Heterotrophic → depend on plants or other organisms for food
  • Food is obtained by ingestion (holozoic nutrition)
  • Food is digested inside the body (internal digestion)
  • Food reserves are stored as:
    • Glycogen
    • Fat

Body features:

  • Cells lack cell walls
  • Most animals show definite shape and size
  • Growth is controlled and stops at maturity
  • Many animals have:
    • Nervous system
    • Sense organs
    • Movement ability (locomotion)

Reproduction:

  • Mostly sexual reproduction
  • Involves:
    • Male and female gametes (copulation)
    • Fertilization
    • Embryonic development (formation of a new organism)

Animals show a wide range of complexity:

  • From simple organisms to highly advanced organisms with complex body systems

KINGDOM PLANTAE

│

├── General Characteristics

│   ├── Eukaryotic organisms

│   ├── Chlorophyll-containing (photosynthetic)

│   ├── Cell wall made of cellulose

│   ├── Mostly autotrophic

│   └── Exceptions

│       ├── Insectivorous plants (partially heterotrophic)

│       │   ├── Bladderwort

│       │   └── Venus fly trap

│       └── Parasitic plants

│           └── Cuscuta

│

├── Plant Cell Features

│   ├── Prominent chloroplasts

│   ├── Eukaryotic cell structure

│   └── Cell wall present (cellulose-based)

│

├── Major Groups in Plantae

│   ├── Algae

│   ├── Bryophytes

│   ├── Pteridophytes

│   ├── Gymnosperms

│   └── Angiosperms

│

├── Life Cycle

│   ├── Alternation of generations

│   │   ├── Sporophytic phase (diploid)

│   │   └── Gametophytic phase (haploid)

│   ├── Variation among plants

│   │   ├── Length of each phase varies

│   │   ├── Free-living phases in some groups

│   │   └── Dependent phases in others

│   └── Importance

│       └── Both phases alternate continuously

│

└── KINGDOM ANIMALIA

    │

    ├── General Characteristics

    │   ├── Eukaryotic multicellular organisms

    │   ├── Cells lack cell wall

    │   ├── Heterotrophic (depend on plants/others)

    │   ├── Mode of nutrition: holozoic (ingestion)

    │   ├── Food storage

    │   │   ├── Glycogen

    │   │   └── Fat

    │   ├── Definite growth pattern

    │   ├── Fixed body shape and size (adults)

    │   ├── Sensory and neuromotor systems (higher forms)

    │   └── Locomotion (most animals)

    │

    ├── Nutrition

    │   ├── Internal digestion

    │   └── Direct/indirect dependence on plants

    │

    ├── Reproduction

    │   ├── Sexual reproduction

    │   │   ├── Copulation of male and female

    │   │   └── Embryological development

    │   └── Development leads to adult form

    │

    └── Key Features

        ├── Multicellularity

        ├── No cell wall

        ├── Mobility in most members

        └── Complex organ systems in higher animals 

 CBSE Class 11 (Biological Classification – Plantae & Animalia focus + basics from chapter) 

🌿 KINGDOM PLANTAE & ANIMALIA – QUESTION BANK

✅ 1. MCQs (1 mark each)

Q1. Kingdom Plantae includes organisms that are mostly: A. Heterotrophic
B. Autotrophic
C. Parasitic
D. Saprophytic
Answer: B

Q2. Cell wall of plants is mainly made up of: A. Chitin
B. Peptidoglycan
C. Cellulose
D. Protein
Answer: C

Q3. Example of insectivorous plant is: A. Mango
B. Cuscuta
C. Venus flytrap
D. Wheat
Answer: C

Q4. Animal cells lack: A. Nucleus
B. Mitochondria
C. Cell wall
D. Ribosomes
Answer: C

Q5. Stored food in animals is in the form of: A. Starch
B. Glycogen
C. Cellulose
D. Glucose
Answer: B

Q6. Alternation of generation involves: A. Only gametophyte
B. Only sporophyte
C. Both sporophyte and gametophyte
D. Neither
Answer: C

✍️ 2. Very Short Answer Questions (1 mark)

Q1. What is alternation of generation?
Ans: Alternation of generation is the life cycle in plants where haploid gametophyte and diploid sporophyte alternate.

Q2. Name one parasitic plant.
Ans: Cuscuta

Q3. What is holozoic nutrition?
Ans: Nutrition where food is ingested and digested inside the body.

Q4. Name the main pigment in plants.
Ans: Chlorophyll

✍️ 3. Short Answer Questions (2–3 marks)

Q1. Give two differences between Plantae and Animalia.
Ans:

  • Plantae have cell wall; Animalia lack cell wall
  • Plantae are autotrophic; Animalia are heterotrophic
  • Plantae have chloroplasts; Animalia do not

Q2. What are insectivorous plants? Give examples.
Ans: Plants that trap and digest insects to obtain nutrients.
Examples: Venus flytrap, Bladderwort.

Q3. Explain cell structure of plants.
Ans: Plant cells are eukaryotic, have a true nucleus, chloroplasts for photosynthesis, and a rigid cellulose cell wall.

Q4. Why do animals store food as glycogen?
Ans: Because glycogen is an easily mobilized energy reserve in animals.

🧠 4. Long Answer Questions (5 marks)

Q1. Explain Kingdom Plantae and its main characteristics.
Ans:

  • Multicellular eukaryotic organisms
  • Mostly autotrophic due to chlorophyll
  • Cell wall made of cellulose
  • Includes algae, bryophytes, pteridophytes, gymnosperms, angiosperms
  • Shows alternation of generations
  • Some are heterotrophic (Cuscuta, Venus flytrap)

Q2. Describe alternation of generations in plants.
Ans:

  • Plant life cycle has two phases:
    • Sporophyte (2n) produces spores
    • Gametophyte (n) produces gametes
  • Both phases alternate in life cycle
  • One may dominate depending on plant group
  • Ensures genetic variation and reproduction

Q3. Explain Kingdom Animalia.
Ans:

  • Multicellular eukaryotes
  • No cell wall
  • Heterotrophic, holozoic nutrition
  • Food stored as glycogen and fat
  • Show locomotion and sensory systems
  • Sexual reproduction common with embryonic development

⚖️ 5. Assertion and Reason

Q1. Assertion (A): Plants are autotrophic organisms.
Reason (R): They contain chlorophyll for photosynthesis.
Answer: Both A and R are true, and R is correct explanation.

Q2. Assertion (A): Animal cells have cell walls.
Reason (R): Cell wall provides rigidity.
Answer: A is false, R is true.

Q3. Assertion (A): Cuscuta is an autotrophic plant.
Reason (R): It contains chlorophyll.
Answer: A is false, R is false (Cuscuta is parasitic and lacks chlorophyll).

🧩 6. Fill in the Blanks

  1. Plant cell wall is made of ________.
    Ans: Cellulose

  2. Animals store food as ________.
    Ans: Glycogen

  3. Venus flytrap is an ________ plant.
    Ans: Insectivorous

  4. Alternation of generation includes ________ and sporophyte.
    Ans: Gametophyte

📊 7. Match the Column

Column A Column B
Venus flytrap Insectivorous plant
Cuscuta Parasitic plant
Glycogen Animal storage food
Cellulose Plant cell wall

Answers:

  • Venus flytrap → Insectivorous plant
  • Cuscuta → Parasitic plant
  • Glycogen → Animal storage food
  • Cellulose → Plant cell wall

📖 8. Case Study

Case: A student observes a plant that traps insects using modified leaves. It still performs photosynthesis but supplements nutrition by digesting insects.

Q1. Identify the plant type.
Ans: Insectivorous plant

Q2. Why does it trap insects?
Ans: To obtain nitrogen and nutrients from insects.

Q3. Give one example.
Ans: Venus flytrap

Q4. Is it autotrophic or heterotrophic?
Ans: Both (mixed nutrition)

🧾 9. Statement Questions

Q1. Statement 1: Plants have cell walls made of cellulose.
Statement 2: Animals have rigid cell walls.
Answer: Statement 1 is true, Statement 2 is false

Q2. Statement 1: Animals show holozoic nutrition.
Statement 2: Food is absorbed directly from environment.
Answer: Statement 1 is true, Statement 2 is false


🔗  INTERNAL LINKS

/neat-biology-classification-of-living-organisms

/kingdom-monera-notes-neet

/kingdom-protista-summary

/kingdom-fungi-notes

/plant-cell-structure-diagram

/animal-cell-vs-plant-cell

/alternation-of-generations-explained

/five-kingdom-classification-whittaker


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