AP Biology Grade 9 - Notes & Study Material for Grade 9
Get access to free study material for AP Biology of Grade 9 for 2026 exams, with Revision Notes, PPTs, Flashcards, Question & Answer, & more.
Unit 1: Chemistry of Life
| Cell Theory & Types of cells 9 pages |  |
| PPT: Cell - The Unit of Life 76 pages | |
| Prokaryotic Cells: Cell Envelope, Ribosomes & Inclusion Bodies 7 pages | |
| Mnemonics: Cell- The Unit of Life 2 pages | |
| Flashcards: Cell - The Unit of Life 61 pages | |
| Chapter Notes: Cell: The Unit of Life 11 pages | |
| Important Diagrams: Cell - The Unit of Life - Part 1 5 pages | |
| 4 Days Study Plan: Cell - The Unit of Life 1 page | |
| Cell Wall and Endomembrane System 15 pages | |
| Important Diagrams: Cell - The Unit of Life 8 pages | |
| Mitochondria, Plastid, Ribosome & Cytoskeleton 3 pages | |
| Mind Map: Cell: The Unit of Life 1 page | |
| Prokaryotic Cells: Cell Envelope & Components of Bacterial Cell 9 pages | |
| Cell Membrane, Cell Wall and Endomembrane System 6 pages | |
| Mitochondria, Plastid, Ribosome, Cytoskeleton & Nucleus 7 pages | |
| Cilia, Flagella, Centrosome and Centriole 6 pages | |
| Short & Long Question Answers with Solution: Cell - The Unit of Life 8 pages | |
| Short & Long Question Answers with Solution: Biomolecules 6 pages | |
| Cheatsheet: Chemistry of Life 16 pages | |
Unit 2: Cell Structure and Function
| Cell Theory & Types of cells 9 pages | |
| PPT: Cell - The Unit of Life 76 pages | |
| Prokaryotic Cells: Cell Envelope, Ribosomes & Inclusion Bodies 7 pages | |
| Mnemonics: Cell- The Unit of Life 2 pages | |
| Flashcards: Cell - The Unit of Life 61 pages | |
| Chapter Notes: Cell: The Unit of Life 11 pages | |
| Important Diagrams: Cell - The Unit of Life - Part 1 5 pages | |
| 4 Days Study Plan: Cell - The Unit of Life 1 page | |
| Cell Wall and Endomembrane System 15 pages | |
| Important Diagrams: Cell - The Unit of Life 8 pages | |
| Mitochondria, Plastid, Ribosome & Cytoskeleton 3 pages | |
| Mind Map: Cell: The Unit of Life 1 page | |
| Prokaryotic Cells: Cell Envelope & Components of Bacterial Cell 9 pages | |
| Cell Membrane, Cell Wall and Endomembrane System 6 pages | |
| Mitochondria, Plastid, Ribosome, Cytoskeleton & Nucleus 7 pages | |
| Cilia, Flagella, Centrosome and Centriole 6 pages | |
| Short & Long Question Answers with Solution: Cell - The Unit of Life 8 pages | |
| Short & Long Question Answers with Solution: Biomolecules 6 pages | |
| Cheatsheet: Cell Structure and Function 14 pages | |
Unit 3: Cellular Energetics
| Mnemonics: Plant Kingdom 1 page | |
| Chapter Notes: Respiration in Plants 14 pages | |
| Photosynthesis: Pigments Involved in Photosynthesis 4 pages | |
| PPT: Plant Kingdom 25 pages | |
| Algae and Its Classification 7 pages | |
| PPT: Photosynthesis in Higher Plants 61 pages | |
| Photosynthesis: Early Experiments & Factors affecting 8 pages | |
| Flashcards: Respiration in Plants 27 pages | |
| Algae: Chlorophyceae, Phaeophyceae & Rhodophyceae 11 pages | |
| How to Master Photosynthesis in Higher Plants for NEET? 3 pages | |
| Index: Photosynthesis in Higher Plants 1 page | |
| Krebs Cycle or Citric Acid Cycle: Steps, Products & Significance 5 pages | |
| Important Diagrams: Photosynthesis in Higher Plants 7 pages | |
| 7 days Study Plan: Plant Kingdom 1 page | |
| Flashcards: Photosynthesis in Higher Plants 47 pages | |
| Important Diagrams: Plant Kingdom 3 pages | |
| 7 Days Study Plan: Respiration in Plants 1 page | |
| Important Diagrams: Respiration in Plants 1 page | |
| Mind Map: Photosynthesis in Higher Plants 1 page | |
| Chapter Notes: Plant Kingdom 9 pages | |
| Mind Map: Plant Kingdom 1 page | |
| Mind Map: Respiration in Plants 1 page | |
| Flashcards: Plant Kingdom 58 pages | |
| Photosynthesis: Site, Type & Factors Affecting 6 pages | |
| Index: Respiration in Plants 5 pages | |
| Light Reactions & Electron Transport 7 pages | |
| Where ATP and NADPH Used & The C4 Pathway 5 pages | |
| Glycolysis & Fermentation 5 pages | |
| Enzymes & Factors Affecting Respiration 10 pages | |
| NCERT Exemplar: Photosynthesis in Higher Plants 19 pages | |
| DPP for NEET: Daily Practice Problems, Ch: Plant Kingdom 11 pages | |
| Introduction of Photorespiration 1 page | |
| Short & Long Question Answers with Solution: Respiration in Plants 10 pages | |
| PPT: Respiration in Plants 52 pages | |
| Short & Long Question Answers with Solution: Photosynthesis in Higher Plants 8 pages | |
| NCERT Exemplar: Plant Kingdom 11 pages | |
| Short & Long Question Answers with Solution: Plant Kingdom 7 pages | |
| Worksheet Solutions: Plant Kingdom 10 pages | |
| Worksheet with Solutions : Plant Kingdom 10 pages | |
| Cheatsheet: Cellular Energetics 11 pages | |
Unit 4: Cell Communication
| Mind Map: Neural Control & Coordination 1 page | |
| Human Neural System 3 pages | |
| Cell Cycle & Mitosis 8 pages | |
| 5 Days Study Plan: Neural Control and Coordination 1 page | |
| Flashcards: Cell Cycle and Cell Division 28 pages | |
| PPT: Neural Control & Coordination 33 pages | |
| Flashcards: Neural Control and Coordination 25 pages | |
| PPT: Cell Cycle & Cell Division 49 pages | |
| 5 Days Study Plan: Cell Cycle & Cell Division 4 pages | |
| Mnemonics: Neural Control and Coordination 1 page | |
| Important Diagrams: Cell Cycle and Cell Division 1 page | |
| Important Diagrams: Neural Control and Coordination 1 page | |
| Mind Map: Cell Cycle & Cell Division 1 page | |
| Transmission of Nerve Impulses 6 pages | |
| Meiosis: Types, Stages & Significance 7 pages | |
| Mitosis: Features, Stages, Functions & Significance 4 pages | |
| Short & Long Question Answers with Solution: Cell Cycle and Cell Division 7 pages | |
| Structure of Spinal Cord 8 pages | |
| Short & Long Question Answers with Solution: Neural Control and Coordination 10 pages | |
| NCERT Solutions: Neural Control & Coordination 18 pages | |
| Cheatsheet: Cell Communication 7 pages | |
Unit 5: Heredity
| NCERT Textbook: Evolution 17 pages | |
| NCERT Solutions: Evolution 4 pages | |
| 9 Days Study Plan: Evolution 3 pages | |
| Important Diagrams: Evolution 1 page | |
| Modern Synthetic Theory of Organic Evolution 5 pages | |
| Evidence of Evolution & Adaptive Radiation 6 pages | |
| Evolution of Life Forms 3 pages | |
| Biological Evolution & Mechanism of Evolution 4 pages | |
| Speciation & Genetic Drift 4 pages | |
| Mind Map: Evolution 1 page | |
| Flashcards: Evolution 62 pages | |
| Origin & Evolution of Man 9 pages | |
| Hardy Weinberg Principle & Evolution of Man 6 pages | |
| Short & Long Question Answers with Solution: Evolution 10 pages | |
| Cheatsheet: Heredity 4 pages | |
Unit 6: Gene Expression
| Principles of Inheritance & Variation till Inheritance of One Gene 13 pages | |
| Genetic & Chromosomal Disorders 10 pages | |
| Inheritance of One Gene 3 pages | |
| Index: Principles of Inheritance & Variation 2 pages | |
| NCERT Solutions: Principles of Inheritance & Variation 8 pages | |
| Mnemonics: Principles of Inheritance & Variation 2 pages | |
| Mind Map: Principles of Inheritance & Variation 1 page | |
| Important Diagrams: Principles of Inheritance and Variation 14 pages | |
| PPT: Principles of Inheritance & Variation 44 pages | |
| Flashcards: Principles of Inheritance & Variation 50 pages | |
| 9 Days Study Plan: Principles of Inheritance & Variation 2 pages | |
| Heredity & Mendel's Laws of Inheritance 5 pages | |
| Inheritance of Two Genes, Polygenic Inheritance & Pleiotropy 6 pages | |
| Sex Determination and Mutation 10 pages | |
| Genetic Disorders: Pedigree Analysis, Mendelian & Chromosomal Disorders 10 pages | |
| Mutation and Its Types 12 pages | |
| Short & Long Question Answers with Solution: Principles of Inheritance & Variation 7 pages | |
| Cheatsheet: Gene Expression 17 pages | |
Unit 7: Natural Selection
| 9 Days Study Plan: Evolution 3 pages | |
| Important Diagrams: Evolution 1 page | |
| Modern Synthetic Theory of Organic Evolution 5 pages | |
| Evidence of Evolution & Adaptive Radiation 6 pages | |
| Evolution of Life Forms 3 pages | |
| Biological Evolution & Mechanism of Evolution 4 pages | |
| Speciation & Genetic Drift 4 pages | |
| Mind Map: Evolution 1 page | |
| Flashcards: Evolution 62 pages | |
| Origin & Evolution of Man 9 pages | |
| Hardy Weinberg Principle & Evolution of Man 6 pages | |
| Short & Long Question Answers with Solution: Evolution 10 pages | |
| Cheatsheet: Natural Selection 6 pages | |
Unit 8: Ecology
| Ecosystem: Introduction & Types 3 pages | |
| 6 Days Study Plan: Organisms and Population 2 pages | |
| 3 Days Study Plan: Biodiversity and its Conservation 1 page | |
| Mind Map: Ecosystems 1 page | |
| Ecology: Organisms & its Enviornment (Only in NEET, Not in NCERT) 9 pages | |
| Mind Map: Organism and Population 1 page | |
| Important Diagrams: Ecosystem 1 page | |
| Important Diagrams: Organisms and Population 1 page | |
| Population Interactions 7 pages | |
| Important Diagrams: Biodiversity And Conversation 1 page | |
| Ecological Pyramids 4 pages | |
| Biodiversity: Types, Importance, Patterns and Loss of Biodiversity 11 pages | |
| Patterns of Biodiversity, Importance & Loss of Biodiversity 8 pages | |
| Flashcards: Organisms and Population 40 pages | |
| Biodiversity Conservation 1 page | |
| Energy Flow, Trophic Level & Food Chain 6 pages | |
| Natural Resources 4 pages | |
| Ecological Succession 4 pages | |
| Abiotic Factors & Responses to Abiotic Factors 13 pages | |
| Biogeochemical Cycles 5 pages | |
| Flashcards: Biodiversity and its Conservation 20 pages | |
| PPT: Biodiversity & its Conservation 23 pages | |
| Ecology: Community & Biome 1 page | |
| Short & Long Question Answers with Solution: Biodiversity and its Conservation 9 pages | |
| Mind Map: Biodiversity and Conservation 1 page | |
| Ecosystem Services 1 page | |
| Components: Producers & Consumers 6 pages | |
| Population Growth 4 pages | |
| Population Attributes & Growth 6 pages | |
| Population Interactions 4 pages | |
| Adaptation & Habitats 11 pages | |
| 4 Days Study Plan: Ecosystem 2 pages | |
| Flashcards: Ecosystem 30 pages | |
| Short & Long Question Answers with Solution: Organisms and Populations 10 pages | |
| Short & Long Question Answers with Solution: Ecosystem 10 pages | |
| PPT: Organisms and Population 28 pages | |
| Cheatsheet: Ecology 7 pages | |
