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Plant Kingdom Notes NEET, Plant Kingdom NCERT Notes, Plant Kingdom PYQ, Class 11 Biology Plant Kingdom, NEET 2026 Biology Notes, Gymnosperms Notes, Angiosperms Notes, Algae Bryophytes Pteridophytes Notes.
The Plant Kingdom chapter is one of the most important chapters in Class 11 Biology for NEET aspirants. Questions are frequently asked from algae, bryophytes, pteridophytes, gymnosperms, angiosperms, life cycles, and NCERT examples.
Introduction to Plant Kingdom
Plants are multicellular, eukaryotic organisms possessing chlorophyll and performing photosynthesis.
Basis of Classification
Plants are classified based on:
Body differentiation
Vascular tissues
Seed formation
Nature of life cycle
Classification of Plant Kingdom
1. Algae
Characteristics
Chlorophyll-bearing organisms
Mostly aquatic
Photosynthetic
Simple thalloid body
Types of Algae
Green Algae (Chlorophyceae)
Examples:
Chlamydomonas
Volvox
Ulothrix
Spirogyra
Brown Algae (Phaeophyceae)
Examples:
Ectocarpus
Dictyota
Laminaria
Sargassum
Red Algae (Rhodophyceae)
Examples:
Porphyra
Polysiphonia
Gelidium
NCERT Point
Red algae contain phycoerythrin pigment.
2. Bryophytes
Characteristics
Amphibians of Plant Kingdom
Require water for fertilization
No vascular tissue
Examples
Riccia
Marchantia
Funaria
NCERT Point
Bryophytes are called amphibians because they need water for sexual reproduction.
3. Pteridophytes
Characteristics
First vascular plants
Possess xylem and phloem
Reproduce through spores
Examples
Selaginella
Equisetum
Pteris
Dryopteris
NCERT Point
Pteridophytes are the first terrestrial vascular plants.
4. Gymnosperms
Characteristics
Naked seeds
No fruits
Well-developed vascular tissues
Examples
Cycas
Pinus
Cedrus
Ginkgo
Important Feature
Seeds remain exposed.
NCERT Point
Gymnosperm seeds are not enclosed within fruits.
5. Angiosperms
Characteristics
Flowering plants
Seeds enclosed within fruits
Most advanced plants
Examples
Mango
Wheat
Rose
Pea
Monocots vs Dicots
Character
Monocots
Dicots
Cotyledons
One
Two
Venation
Parallel
Reticulate
Root System
Fibrous
Tap Root
Floral Parts
Multiple of 3
Multiple of 4 or 5
Plant Life Cycles
Haplontic
Dominant phase:
Haploid
Example:
Chlamydomonas
Diplontic
Dominant phase:
Diploid
Example:
Gymnosperms
Angiosperms
Haplodiplontic
Both phases multicellular.
Examples:
Bryophytes
Pteridophytes
Important NCERT Examples
Green Algae
Volvox
Spirogyra
Ulothrix
Bryophytes
Riccia
Marchantia
Funaria
Pteridophytes
Selaginella
Equisetum
Gymnosperms
Cycas
Pinus
Angiosperms
Wheat
Mango
Most Important NCERT Points
✔ Algae are primary producers.
✔ Bryophytes are amphibians of plant kingdom.
✔ Pteridophytes are first vascular plants.
✔ Gymnosperms possess naked seeds.
✔ Angiosperms are flowering plants.
✔ Cycas shows coralloid roots.
✔ Pinus possesses winged pollen grains.
NEET PYQ Questions
Q1. Amphibians of Plant Kingdom are:
A. Algae
B. Bryophytes
C. Gymnosperms
D. Angiosperms
✅ Answer: B. Bryophytes
Q2. Naked seeds occur in:
A. Bryophytes
B. Pteridophytes
C. Gymnosperms
D. Angiosperms
✅ Answer: C. Gymnosperms
Q3. First vascular land plants are:
A. Algae
B. Bryophytes
C. Pteridophytes
D. Angiosperms
✅ Answer: C. Pteridophytes
Q4. Red color in red algae is due to:
A. Chlorophyll b
B. Carotene
C. Phycoerythrin
D. Fucoxanthin
✅ Answer: C. Phycoerythrin
Q5. Which plant has coralloid roots?
A. Pinus
B. Cycas
C. Mango
D. Funaria
✅ Answer: B. Cycas
Last Minute NEET Revision Tips
Must Revise
NCERT examples
Plant life cycles
Monocot vs Dicot differences
Algae classification
Gymnosperm features
Bryophyte and Pteridophyte characteristics
Conclusion
Plant Kingdom is a high-scoring NEET chapter with direct NCERT-based questions. Focus on classification, examples, life cycles, and characteristic features to maximize your Biology score.
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